Home / 13,543.52-20,310.88-4,307.36

Finding the Fourth Proportional to 13,543.52, 20,310.88 and 4,307.36

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Solution

The fourth proportional to 13,543.52, 20,310.88 and 4,307.36 is: 6,459.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.52 : 20,310.88 = 4,307.36 : x
  2. Step 2: Convert to fraction form
    13,543.52/20,310.88 = 4,307.36/x
  3. Step 3: Cross multiply
    13,543.52x = 20,310.88 × 4,307.36
  4. Step 4: Simplify right side
    13,543.52x = 87,486,272.08
  5. Step 5: Solve for x
    x = 87,486,272.08/13,543.52
  6. Step 6: Final answer
    x = 6,459.64

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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.