Home / 11,210.10-15,475.52-8,686.50

Finding the Fourth Proportional to 11,210.10, 15,475.52 and 8,686.50

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Solution

The fourth proportional to 11,210.10, 15,475.52 and 8,686.50 is: 11,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.10 : 15,475.52 = 8,686.50 : x
  2. Step 2: Convert to fraction form
    11,210.10/15,475.52 = 8,686.50/x
  3. Step 3: Cross multiply
    11,210.10x = 15,475.52 × 8,686.50
  4. Step 4: Simplify right side
    11,210.10x = 134,428,104.48
  5. Step 5: Solve for x
    x = 134,428,104.48/11,210.10
  6. Step 6: Final answer
    x = 11,991.70

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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.