Home / 15,478.30-23,221.06-12,327.66

Finding the Fourth Proportional to 15,478.30, 23,221.06 and 12,327.66

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Solution

The fourth proportional to 15,478.30, 23,221.06 and 12,327.66 is: 18,494.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.30 : 23,221.06 = 12,327.66 : x
  2. Step 2: Convert to fraction form
    15,478.30/23,221.06 = 12,327.66/x
  3. Step 3: Cross multiply
    15,478.30x = 23,221.06 × 12,327.66
  4. Step 4: Simplify right side
    15,478.30x = 286,261,332.52
  5. Step 5: Solve for x
    x = 286,261,332.52/15,478.30
  6. Step 6: Final answer
    x = 18,494.37

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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.