Home / 12,637.74-17,438.40-7,331.79

Finding the Fourth Proportional to 12,637.74, 17,438.40 and 7,331.79

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Solution

The fourth proportional to 12,637.74, 17,438.40 and 7,331.79 is: 10,116.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.74 : 17,438.40 = 7,331.79 : x
  2. Step 2: Convert to fraction form
    12,637.74/17,438.40 = 7,331.79/x
  3. Step 3: Cross multiply
    12,637.74x = 17,438.40 × 7,331.79
  4. Step 4: Simplify right side
    12,637.74x = 127,854,686.74
  5. Step 5: Solve for x
    x = 127,854,686.74/12,637.74
  6. Step 6: Final answer
    x = 10,116.89

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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.