Home / 13,508.96-18,641.86-8,475.88

Finding the Fourth Proportional to 13,508.96, 18,641.86 and 8,475.88

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Solution

The fourth proportional to 13,508.96, 18,641.86 and 8,475.88 is: 11,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.96 : 18,641.86 = 8,475.88 : x
  2. Step 2: Convert to fraction form
    13,508.96/18,641.86 = 8,475.88/x
  3. Step 3: Cross multiply
    13,508.96x = 18,641.86 × 8,475.88
  4. Step 4: Simplify right side
    13,508.96x = 158,006,168.34
  5. Step 5: Solve for x
    x = 158,006,168.34/13,508.96
  6. Step 6: Final answer
    x = 11,696.40

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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.