Home / 14,261.23-19,679.40-7,972.39

Finding the Fourth Proportional to 14,261.23, 19,679.40 and 7,972.39

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Solution

The fourth proportional to 14,261.23, 19,679.40 and 7,972.39 is: 11,001.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,261.23 : 19,679.40 = 7,972.39 : x
  2. Step 2: Convert to fraction form
    14,261.23/19,679.40 = 7,972.39/x
  3. Step 3: Cross multiply
    14,261.23x = 19,679.40 × 7,972.39
  4. Step 4: Simplify right side
    14,261.23x = 156,891,851.77
  5. Step 5: Solve for x
    x = 156,891,851.77/14,261.23
  6. Step 6: Final answer
    x = 11,001.28

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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.