Home / 13,553.28-18,703.68-7,585.52

Finding the Fourth Proportional to 13,553.28, 18,703.68 and 7,585.52

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Solution

The fourth proportional to 13,553.28, 18,703.68 and 7,585.52 is: 10,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.28 : 18,703.68 = 7,585.52 : x
  2. Step 2: Convert to fraction form
    13,553.28/18,703.68 = 7,585.52/x
  3. Step 3: Cross multiply
    13,553.28x = 18,703.68 × 7,585.52
  4. Step 4: Simplify right side
    13,553.28x = 141,877,138.71
  5. Step 5: Solve for x
    x = 141,877,138.71/13,553.28
  6. Step 6: Final answer
    x = 10,468.10

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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.