Home / 15,146.40-20,900.26-8,773.10

Finding the Fourth Proportional to 15,146.40, 20,900.26 and 8,773.10

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Solution

The fourth proportional to 15,146.40, 20,900.26 and 8,773.10 is: 12,105.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,146.40 : 20,900.26 = 8,773.10 : x
  2. Step 2: Convert to fraction form
    15,146.40/20,900.26 = 8,773.10/x
  3. Step 3: Cross multiply
    15,146.40x = 20,900.26 × 8,773.10
  4. Step 4: Simplify right side
    15,146.40x = 183,360,071.01
  5. Step 5: Solve for x
    x = 183,360,071.01/15,146.40
  6. Step 6: Final answer
    x = 12,105.85

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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.