Home / 8,630.24-12,916.20-5,345.60

Finding the Fourth Proportional to 8,630.24, 12,916.20 and 5,345.60

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Solution

The fourth proportional to 8,630.24, 12,916.20 and 5,345.60 is: 8,000.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.24 : 12,916.20 = 5,345.60 : x
  2. Step 2: Convert to fraction form
    8,630.24/12,916.20 = 5,345.60/x
  3. Step 3: Cross multiply
    8,630.24x = 12,916.20 × 5,345.60
  4. Step 4: Simplify right side
    8,630.24x = 69,044,838.72
  5. Step 5: Solve for x
    x = 69,044,838.72/8,630.24
  6. Step 6: Final answer
    x = 8,000.34

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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.