Home / 13,456.40-20,184.71-4,691.30

Finding the Fourth Proportional to 13,456.40, 20,184.71 and 4,691.30

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Solution

The fourth proportional to 13,456.40, 20,184.71 and 4,691.30 is: 7,036.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.40 : 20,184.71 = 4,691.30 : x
  2. Step 2: Convert to fraction form
    13,456.40/20,184.71 = 4,691.30/x
  3. Step 3: Cross multiply
    13,456.40x = 20,184.71 × 4,691.30
  4. Step 4: Simplify right side
    13,456.40x = 94,692,405.64
  5. Step 5: Solve for x
    x = 94,692,405.64/13,456.40
  6. Step 6: Final answer
    x = 7,036.98

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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.