Home / 17,687.60-26,528.10-7,154.86

Finding the Fourth Proportional to 17,687.60, 26,528.10 and 7,154.86

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Solution

The fourth proportional to 17,687.60, 26,528.10 and 7,154.86 is: 10,730.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,687.60 : 26,528.10 = 7,154.86 : x
  2. Step 2: Convert to fraction form
    17,687.60/26,528.10 = 7,154.86/x
  3. Step 3: Cross multiply
    17,687.60x = 26,528.10 × 7,154.86
  4. Step 4: Simplify right side
    17,687.60x = 189,804,841.57
  5. Step 5: Solve for x
    x = 189,804,841.57/17,687.60
  6. Step 6: Final answer
    x = 10,730.96

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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.