Home / 10,654.20-15,981.18-4,806.72

Finding the Fourth Proportional to 10,654.20, 15,981.18 and 4,806.72

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Solution

The fourth proportional to 10,654.20, 15,981.18 and 4,806.72 is: 7,210.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,654.20 : 15,981.18 = 4,806.72 : x
  2. Step 2: Convert to fraction form
    10,654.20/15,981.18 = 4,806.72/x
  3. Step 3: Cross multiply
    10,654.20x = 15,981.18 × 4,806.72
  4. Step 4: Simplify right side
    10,654.20x = 76,817,057.53
  5. Step 5: Solve for x
    x = 76,817,057.53/10,654.20
  6. Step 6: Final answer
    x = 7,210.03

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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.