Home / 10,854.30-14,981.67-6,140.10

Finding the Fourth Proportional to 10,854.30, 14,981.67 and 6,140.10

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Solution

The fourth proportional to 10,854.30, 14,981.67 and 6,140.10 is: 8,474.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,854.30 : 14,981.67 = 6,140.10 : x
  2. Step 2: Convert to fraction form
    10,854.30/14,981.67 = 6,140.10/x
  3. Step 3: Cross multiply
    10,854.30x = 14,981.67 × 6,140.10
  4. Step 4: Simplify right side
    10,854.30x = 91,988,951.97
  5. Step 5: Solve for x
    x = 91,988,951.97/10,854.30
  6. Step 6: Final answer
    x = 8,474.89

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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.