Home / 10,411.74-15,591.66-8,688.06

Finding the Fourth Proportional to 10,411.74, 15,591.66 and 8,688.06

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Solution

The fourth proportional to 10,411.74, 15,591.66 and 8,688.06 is: 13,010.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,411.74 : 15,591.66 = 8,688.06 : x
  2. Step 2: Convert to fraction form
    10,411.74/15,591.66 = 8,688.06/x
  3. Step 3: Cross multiply
    10,411.74x = 15,591.66 × 8,688.06
  4. Step 4: Simplify right side
    10,411.74x = 135,461,277.58
  5. Step 5: Solve for x
    x = 135,461,277.58/10,411.74
  6. Step 6: Final answer
    x = 13,010.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.