Home / 13,337.61-19,999.76-8,272.32

Finding the Fourth Proportional to 13,337.61, 19,999.76 and 8,272.32

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Solution

The fourth proportional to 13,337.61, 19,999.76 and 8,272.32 is: 12,404.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.61 : 19,999.76 = 8,272.32 : x
  2. Step 2: Convert to fraction form
    13,337.61/19,999.76 = 8,272.32/x
  3. Step 3: Cross multiply
    13,337.61x = 19,999.76 × 8,272.32
  4. Step 4: Simplify right side
    13,337.61x = 165,444,298.28
  5. Step 5: Solve for x
    x = 165,444,298.28/13,337.61
  6. Step 6: Final answer
    x = 12,404.35

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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.