Home / 10,870.28-15,000.99-6,154.57

Finding the Fourth Proportional to 10,870.28, 15,000.99 and 6,154.57

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Solution

The fourth proportional to 10,870.28, 15,000.99 and 6,154.57 is: 8,493.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870.28 : 15,000.99 = 6,154.57 : x
  2. Step 2: Convert to fraction form
    10,870.28/15,000.99 = 6,154.57/x
  3. Step 3: Cross multiply
    10,870.28x = 15,000.99 × 6,154.57
  4. Step 4: Simplify right side
    10,870.28x = 92,324,643.02
  5. Step 5: Solve for x
    x = 92,324,643.02/10,870.28
  6. Step 6: Final answer
    x = 8,493.31

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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.