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Finding the Fourth Proportional to 15,130.68, 22,701.69 and 6,808.20

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Solution

The fourth proportional to 15,130.68, 22,701.69 and 6,808.20 is: 10,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,130.68 : 22,701.69 = 6,808.20 : x
  2. Step 2: Convert to fraction form
    15,130.68/22,701.69 = 6,808.20/x
  3. Step 3: Cross multiply
    15,130.68x = 22,701.69 × 6,808.20
  4. Step 4: Simplify right side
    15,130.68x = 154,557,645.86
  5. Step 5: Solve for x
    x = 154,557,645.86/15,130.68
  6. Step 6: Final answer
    x = 10,214.85

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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.