Home / 26,688.98-39,989.48-9,149.18

Finding the Fourth Proportional to 26,688.98, 39,989.48 and 9,149.18

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Solution

The fourth proportional to 26,688.98, 39,989.48 and 9,149.18 is: 13,708.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,688.98 : 39,989.48 = 9,149.18 : x
  2. Step 2: Convert to fraction form
    26,688.98/39,989.48 = 9,149.18/x
  3. Step 3: Cross multiply
    26,688.98x = 39,989.48 × 9,149.18
  4. Step 4: Simplify right side
    26,688.98x = 365,870,773.55
  5. Step 5: Solve for x
    x = 365,870,773.55/26,688.98
  6. Step 6: Final answer
    x = 13,708.69

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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.