Home / 13,543.15-20,296.27-8,280.00

Finding the Fourth Proportional to 13,543.15, 20,296.27 and 8,280.00

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Solution

The fourth proportional to 13,543.15, 20,296.27 and 8,280.00 is: 12,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.15 : 20,296.27 = 8,280.00 : x
  2. Step 2: Convert to fraction form
    13,543.15/20,296.27 = 8,280.00/x
  3. Step 3: Cross multiply
    13,543.15x = 20,296.27 × 8,280.00
  4. Step 4: Simplify right side
    13,543.15x = 168,053,068.87
  5. Step 5: Solve for x
    x = 168,053,068.87/13,543.15
  6. Step 6: Final answer
    x = 12,408.71

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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.