Home / 13,075.40-18,048.18-8,359.70

Finding the Fourth Proportional to 13,075.40, 18,048.18 and 8,359.70

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Solution

The fourth proportional to 13,075.40, 18,048.18 and 8,359.70 is: 11,539.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.40 : 18,048.18 = 8,359.70 : x
  2. Step 2: Convert to fraction form
    13,075.40/18,048.18 = 8,359.70/x
  3. Step 3: Cross multiply
    13,075.40x = 18,048.18 × 8,359.70
  4. Step 4: Simplify right side
    13,075.40x = 150,877,370.35
  5. Step 5: Solve for x
    x = 150,877,370.35/13,075.40
  6. Step 6: Final answer
    x = 11,539.03

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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.