Home / 12,397.71-18,597.75-4,077.80

Finding the Fourth Proportional to 12,397.71, 18,597.75 and 4,077.80

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Solution

The fourth proportional to 12,397.71, 18,597.75 and 4,077.80 is: 6,117.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.71 : 18,597.75 = 4,077.80 : x
  2. Step 2: Convert to fraction form
    12,397.71/18,597.75 = 4,077.80/x
  3. Step 3: Cross multiply
    12,397.71x = 18,597.75 × 4,077.80
  4. Step 4: Simplify right side
    12,397.71x = 75,837,791.57
  5. Step 5: Solve for x
    x = 75,837,791.57/12,397.71
  6. Step 6: Final answer
    x = 6,117.08

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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.