Home / 13,316.74-18,374.85-7,650.18

Finding the Fourth Proportional to 13,316.74, 18,374.85 and 7,650.18

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Solution

The fourth proportional to 13,316.74, 18,374.85 and 7,650.18 is: 10,555.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.74 : 18,374.85 = 7,650.18 : x
  2. Step 2: Convert to fraction form
    13,316.74/18,374.85 = 7,650.18/x
  3. Step 3: Cross multiply
    13,316.74x = 18,374.85 × 7,650.18
  4. Step 4: Simplify right side
    13,316.74x = 140,570,909.97
  5. Step 5: Solve for x
    x = 140,570,909.97/13,316.74
  6. Step 6: Final answer
    x = 10,555.96

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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.