Home / 13,424.49-18,526.05-7,456.71

Finding the Fourth Proportional to 13,424.49, 18,526.05 and 7,456.71

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Solution

The fourth proportional to 13,424.49, 18,526.05 and 7,456.71 is: 10,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.49 : 18,526.05 = 7,456.71 : x
  2. Step 2: Convert to fraction form
    13,424.49/18,526.05 = 7,456.71/x
  3. Step 3: Cross multiply
    13,424.49x = 18,526.05 × 7,456.71
  4. Step 4: Simplify right side
    13,424.49x = 138,143,382.30
  5. Step 5: Solve for x
    x = 138,143,382.30/13,424.49
  6. Step 6: Final answer
    x = 10,290.40

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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.