Home / 15,147.48-20,900.35-8,773.74

Finding the Fourth Proportional to 15,147.48, 20,900.35 and 8,773.74

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Solution

The fourth proportional to 15,147.48, 20,900.35 and 8,773.74 is: 12,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,147.48 : 20,900.35 = 8,773.74 : x
  2. Step 2: Convert to fraction form
    15,147.48/20,900.35 = 8,773.74/x
  3. Step 3: Cross multiply
    15,147.48x = 20,900.35 × 8,773.74
  4. Step 4: Simplify right side
    15,147.48x = 183,374,331.23
  5. Step 5: Solve for x
    x = 183,374,331.23/15,147.48
  6. Step 6: Final answer
    x = 12,105.93

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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.