Home / 10,111.20-13,952.52-5,861.40

Finding the Fourth Proportional to 10,111.20, 13,952.52 and 5,861.40

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Solution

The fourth proportional to 10,111.20, 13,952.52 and 5,861.40 is: 8,088.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,111.20 : 13,952.52 = 5,861.40 : x
  2. Step 2: Convert to fraction form
    10,111.20/13,952.52 = 5,861.40/x
  3. Step 3: Cross multiply
    10,111.20x = 13,952.52 × 5,861.40
  4. Step 4: Simplify right side
    10,111.20x = 81,781,300.73
  5. Step 5: Solve for x
    x = 81,781,300.73/10,111.20
  6. Step 6: Final answer
    x = 8,088.19

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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.