Home / 10,440.76-14,320.04-9,875.92

Finding the Fourth Proportional to 10,440.76, 14,320.04 and 9,875.92

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Solution

The fourth proportional to 10,440.76, 14,320.04 and 9,875.92 is: 13,545.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.76 : 14,320.04 = 9,875.92 : x
  2. Step 2: Convert to fraction form
    10,440.76/14,320.04 = 9,875.92/x
  3. Step 3: Cross multiply
    10,440.76x = 14,320.04 × 9,875.92
  4. Step 4: Simplify right side
    10,440.76x = 141,423,569.44
  5. Step 5: Solve for x
    x = 141,423,569.44/10,440.76
  6. Step 6: Final answer
    x = 13,545.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.