Home / 13,669.52-18,864.75-9,124.40

Finding the Fourth Proportional to 13,669.52, 18,864.75 and 9,124.40

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Solution

The fourth proportional to 13,669.52, 18,864.75 and 9,124.40 is: 12,592.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.52 : 18,864.75 = 9,124.40 : x
  2. Step 2: Convert to fraction form
    13,669.52/18,864.75 = 9,124.40/x
  3. Step 3: Cross multiply
    13,669.52x = 18,864.75 × 9,124.40
  4. Step 4: Simplify right side
    13,669.52x = 172,129,430.58
  5. Step 5: Solve for x
    x = 172,129,430.58/13,669.52
  6. Step 6: Final answer
    x = 12,592.21

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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.