Home / 14,839.48-20,478.45-8,870.86

Finding the Fourth Proportional to 14,839.48, 20,478.45 and 8,870.86

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Solution

The fourth proportional to 14,839.48, 20,478.45 and 8,870.86 is: 12,241.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,839.48 : 20,478.45 = 8,870.86 : x
  2. Step 2: Convert to fraction form
    14,839.48/20,478.45 = 8,870.86/x
  3. Step 3: Cross multiply
    14,839.48x = 20,478.45 × 8,870.86
  4. Step 4: Simplify right side
    14,839.48x = 181,661,462.97
  5. Step 5: Solve for x
    x = 181,661,462.97/14,839.48
  6. Step 6: Final answer
    x = 12,241.77

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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.