Home / 13,075.39-18,043.53-7,106.93

Finding the Fourth Proportional to 13,075.39, 18,043.53 and 7,106.93

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Solution

The fourth proportional to 13,075.39, 18,043.53 and 7,106.93 is: 9,807.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.39 : 18,043.53 = 7,106.93 : x
  2. Step 2: Convert to fraction form
    13,075.39/18,043.53 = 7,106.93/x
  3. Step 3: Cross multiply
    13,075.39x = 18,043.53 × 7,106.93
  4. Step 4: Simplify right side
    13,075.39x = 128,234,055.46
  5. Step 5: Solve for x
    x = 128,234,055.46/13,075.39
  6. Step 6: Final answer
    x = 9,807.28

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Half scale
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Double scale
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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.