Home / 10,561.20-15,914.45-8,753.01

Finding the Fourth Proportional to 10,561.20, 15,914.45 and 8,753.01

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Solution

The fourth proportional to 10,561.20, 15,914.45 and 8,753.01 is: 13,189.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561.20 : 15,914.45 = 8,753.01 : x
  2. Step 2: Convert to fraction form
    10,561.20/15,914.45 = 8,753.01/x
  3. Step 3: Cross multiply
    10,561.20x = 15,914.45 × 8,753.01
  4. Step 4: Simplify right side
    10,561.20x = 139,299,296.23
  5. Step 5: Solve for x
    x = 139,299,296.23/10,561.20
  6. Step 6: Final answer
    x = 13,189.72

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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.