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Finding the Fourth Proportional to 15,618.16, 21,560.88 and 10,608.88

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Solution

The fourth proportional to 15,618.16, 21,560.88 and 10,608.88 is: 14,645.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.16 : 21,560.88 = 10,608.88 : x
  2. Step 2: Convert to fraction form
    15,618.16/21,560.88 = 10,608.88/x
  3. Step 3: Cross multiply
    15,618.16x = 21,560.88 × 10,608.88
  4. Step 4: Simplify right side
    15,618.16x = 228,736,788.61
  5. Step 5: Solve for x
    x = 228,736,788.61/15,618.16
  6. Step 6: Final answer
    x = 14,645.57

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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.