Home / 13,339.12-20,001.12-5,543.68

Finding the Fourth Proportional to 13,339.12, 20,001.12 and 5,543.68

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Solution

The fourth proportional to 13,339.12, 20,001.12 and 5,543.68 is: 8,312.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.12 : 20,001.12 = 5,543.68 : x
  2. Step 2: Convert to fraction form
    13,339.12/20,001.12 = 5,543.68/x
  3. Step 3: Cross multiply
    13,339.12x = 20,001.12 × 5,543.68
  4. Step 4: Simplify right side
    13,339.12x = 110,879,808.92
  5. Step 5: Solve for x
    x = 110,879,808.92/13,339.12
  6. Step 6: Final answer
    x = 8,312.38

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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.