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Finding the Fourth Proportional to 15,894.78, 23,842.16 and 6,539.89

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Solution

The fourth proportional to 15,894.78, 23,842.16 and 6,539.89 is: 9,809.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,894.78 : 23,842.16 = 6,539.89 : x
  2. Step 2: Convert to fraction form
    15,894.78/23,842.16 = 6,539.89/x
  3. Step 3: Cross multiply
    15,894.78x = 23,842.16 × 6,539.89
  4. Step 4: Simplify right side
    15,894.78x = 155,925,117.47
  5. Step 5: Solve for x
    x = 155,925,117.47/15,894.78
  6. Step 6: Final answer
    x = 9,809.83

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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.