Home / 13,337.66-20,005.98-3,342.40

Finding the Fourth Proportional to 13,337.66, 20,005.98 and 3,342.40

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Solution

The fourth proportional to 13,337.66, 20,005.98 and 3,342.40 is: 5,013.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.66 : 20,005.98 = 3,342.40 : x
  2. Step 2: Convert to fraction form
    13,337.66/20,005.98 = 3,342.40/x
  3. Step 3: Cross multiply
    13,337.66x = 20,005.98 × 3,342.40
  4. Step 4: Simplify right side
    13,337.66x = 66,867,987.55
  5. Step 5: Solve for x
    x = 66,867,987.55/13,337.66
  6. Step 6: Final answer
    x = 5,013.47

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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.