Home / 13,710.16-20,561.16-7,132.76

Finding the Fourth Proportional to 13,710.16, 20,561.16 and 7,132.76

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Solution

The fourth proportional to 13,710.16, 20,561.16 and 7,132.76 is: 10,697.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.16 : 20,561.16 = 7,132.76 : x
  2. Step 2: Convert to fraction form
    13,710.16/20,561.16 = 7,132.76/x
  3. Step 3: Cross multiply
    13,710.16x = 20,561.16 × 7,132.76
  4. Step 4: Simplify right side
    13,710.16x = 146,657,819.60
  5. Step 5: Solve for x
    x = 146,657,819.60/13,710.16
  6. Step 6: Final answer
    x = 10,697.02

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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.