Home / 15,280.40-22,920.60-6,516.20

Finding the Fourth Proportional to 15,280.40, 22,920.60 and 6,516.20

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Solution

The fourth proportional to 15,280.40, 22,920.60 and 6,516.20 is: 9,774.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280.40 : 22,920.60 = 6,516.20 : x
  2. Step 2: Convert to fraction form
    15,280.40/22,920.60 = 6,516.20/x
  3. Step 3: Cross multiply
    15,280.40x = 22,920.60 × 6,516.20
  4. Step 4: Simplify right side
    15,280.40x = 149,355,213.72
  5. Step 5: Solve for x
    x = 149,355,213.72/15,280.40
  6. Step 6: Final answer
    x = 9,774.30

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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.