Home / 12,397.71-18,597.79-4,074.36

Finding the Fourth Proportional to 12,397.71, 18,597.79 and 4,074.36

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Solution

The fourth proportional to 12,397.71, 18,597.79 and 4,074.36 is: 6,111.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.71 : 18,597.79 = 4,074.36 : x
  2. Step 2: Convert to fraction form
    12,397.71/18,597.79 = 4,074.36/x
  3. Step 3: Cross multiply
    12,397.71x = 18,597.79 × 4,074.36
  4. Step 4: Simplify right side
    12,397.71x = 75,773,988.49
  5. Step 5: Solve for x
    x = 75,773,988.49/12,397.71
  6. Step 6: Final answer
    x = 6,111.93

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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.