Home / 26,439.60-39,657.34-9,791.80

Finding the Fourth Proportional to 26,439.60, 39,657.34 and 9,791.80

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Solution

The fourth proportional to 26,439.60, 39,657.34 and 9,791.80 is: 14,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,439.60 : 39,657.34 = 9,791.80 : x
  2. Step 2: Convert to fraction form
    26,439.60/39,657.34 = 9,791.80/x
  3. Step 3: Cross multiply
    26,439.60x = 39,657.34 × 9,791.80
  4. Step 4: Simplify right side
    26,439.60x = 388,316,741.81
  5. Step 5: Solve for x
    x = 388,316,741.81/26,439.60
  6. Step 6: Final answer
    x = 14,686.94

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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.