Home / 10,870.20-15,000.84-6,154.56

Finding the Fourth Proportional to 10,870.20, 15,000.84 and 6,154.56

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Solution

The fourth proportional to 10,870.20, 15,000.84 and 6,154.56 is: 8,493.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870.20 : 15,000.84 = 6,154.56 : x
  2. Step 2: Convert to fraction form
    10,870.20/15,000.84 = 6,154.56/x
  3. Step 3: Cross multiply
    10,870.20x = 15,000.84 × 6,154.56
  4. Step 4: Simplify right side
    10,870.20x = 92,323,569.83
  5. Step 5: Solve for x
    x = 92,323,569.83/10,870.20
  6. Step 6: Final answer
    x = 8,493.27

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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.