Home / 12,543.60-18,822.69-5,153.37

Finding the Fourth Proportional to 12,543.60, 18,822.69 and 5,153.37

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Solution

The fourth proportional to 12,543.60, 18,822.69 and 5,153.37 is: 7,733.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.60 : 18,822.69 = 5,153.37 : x
  2. Step 2: Convert to fraction form
    12,543.60/18,822.69 = 5,153.37/x
  3. Step 3: Cross multiply
    12,543.60x = 18,822.69 × 5,153.37
  4. Step 4: Simplify right side
    12,543.60x = 97,000,285.97
  5. Step 5: Solve for x
    x = 97,000,285.97/12,543.60
  6. Step 6: Final answer
    x = 7,733.05

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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.