Home / 13,512.08-18,647.50-7,543.74

Finding the Fourth Proportional to 13,512.08, 18,647.50 and 7,543.74

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Solution

The fourth proportional to 13,512.08, 18,647.50 and 7,543.74 is: 10,410.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.08 : 18,647.50 = 7,543.74 : x
  2. Step 2: Convert to fraction form
    13,512.08/18,647.50 = 7,543.74/x
  3. Step 3: Cross multiply
    13,512.08x = 18,647.50 × 7,543.74
  4. Step 4: Simplify right side
    13,512.08x = 140,671,891.65
  5. Step 5: Solve for x
    x = 140,671,891.65/13,512.08
  6. Step 6: Final answer
    x = 10,410.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.