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Finding the Fourth Proportional to 15,001.68, 20,693.16 and 10,518.96

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Solution

The fourth proportional to 15,001.68, 20,693.16 and 10,518.96 is: 14,509.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001.68 : 20,693.16 = 10,518.96 : x
  2. Step 2: Convert to fraction form
    15,001.68/20,693.16 = 10,518.96/x
  3. Step 3: Cross multiply
    15,001.68x = 20,693.16 × 10,518.96
  4. Step 4: Simplify right side
    15,001.68x = 217,670,522.31
  5. Step 5: Solve for x
    x = 217,670,522.31/15,001.68
  6. Step 6: Final answer
    x = 14,509.74

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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.