Home / 10,561.70-15,915.20-8,753.52

Finding the Fourth Proportional to 10,561.70, 15,915.20 and 8,753.52

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Solution

The fourth proportional to 10,561.70, 15,915.20 and 8,753.52 is: 13,190.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561.70 : 15,915.20 = 8,753.52 : x
  2. Step 2: Convert to fraction form
    10,561.70/15,915.20 = 8,753.52/x
  3. Step 3: Cross multiply
    10,561.70x = 15,915.20 × 8,753.52
  4. Step 4: Simplify right side
    10,561.70x = 139,314,021.50
  5. Step 5: Solve for x
    x = 139,314,021.50/10,561.70
  6. Step 6: Final answer
    x = 13,190.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.