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Finding the Fourth Proportional to 15,659.84, 23,489.86 and 7,345.74

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Solution

The fourth proportional to 15,659.84, 23,489.86 and 7,345.74 is: 11,018.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.84 : 23,489.86 = 7,345.74 : x
  2. Step 2: Convert to fraction form
    15,659.84/23,489.86 = 7,345.74/x
  3. Step 3: Cross multiply
    15,659.84x = 23,489.86 × 7,345.74
  4. Step 4: Simplify right side
    15,659.84x = 172,550,404.20
  5. Step 5: Solve for x
    x = 172,550,404.20/15,659.84
  6. Step 6: Final answer
    x = 11,018.66

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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.