Home / 8,070.78-11,136.63-4,711.16

Finding the Fourth Proportional to 8,070.78, 11,136.63 and 4,711.16

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Solution

The fourth proportional to 8,070.78, 11,136.63 and 4,711.16 is: 6,500.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,070.78 : 11,136.63 = 4,711.16 : x
  2. Step 2: Convert to fraction form
    8,070.78/11,136.63 = 4,711.16/x
  3. Step 3: Cross multiply
    8,070.78x = 11,136.63 × 4,711.16
  4. Step 4: Simplify right side
    8,070.78x = 52,466,445.79
  5. Step 5: Solve for x
    x = 52,466,445.79/8,070.78
  6. Step 6: Final answer
    x = 6,500.79

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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.