Home / 13,098.15-18,075.80-8,065.33

Finding the Fourth Proportional to 13,098.15, 18,075.80 and 8,065.33

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Solution

The fourth proportional to 13,098.15, 18,075.80 and 8,065.33 is: 11,130.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,098.15 : 18,075.80 = 8,065.33 : x
  2. Step 2: Convert to fraction form
    13,098.15/18,075.80 = 8,065.33/x
  3. Step 3: Cross multiply
    13,098.15x = 18,075.80 × 8,065.33
  4. Step 4: Simplify right side
    13,098.15x = 145,787,292.01
  5. Step 5: Solve for x
    x = 145,787,292.01/13,098.15
  6. Step 6: Final answer
    x = 11,130.37

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.