Home / 13,403.52-18,497.15-7,434.99

Finding the Fourth Proportional to 13,403.52, 18,497.15 and 7,434.99

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Solution

The fourth proportional to 13,403.52, 18,497.15 and 7,434.99 is: 10,260.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.52 : 18,497.15 = 7,434.99 : x
  2. Step 2: Convert to fraction form
    13,403.52/18,497.15 = 7,434.99/x
  3. Step 3: Cross multiply
    13,403.52x = 18,497.15 × 7,434.99
  4. Step 4: Simplify right side
    13,403.52x = 137,526,125.28
  5. Step 5: Solve for x
    x = 137,526,125.28/13,403.52
  6. Step 6: Final answer
    x = 10,260.45

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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.