Home / 14,679.40-20,233.98-11,487.28

Finding the Fourth Proportional to 14,679.40, 20,233.98 and 11,487.28

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Solution

The fourth proportional to 14,679.40, 20,233.98 and 11,487.28 is: 15,833.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679.40 : 20,233.98 = 11,487.28 : x
  2. Step 2: Convert to fraction form
    14,679.40/20,233.98 = 11,487.28/x
  3. Step 3: Cross multiply
    14,679.40x = 20,233.98 × 11,487.28
  4. Step 4: Simplify right side
    14,679.40x = 232,433,393.77
  5. Step 5: Solve for x
    x = 232,433,393.77/14,679.40
  6. Step 6: Final answer
    x = 15,833.98

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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.