Home / 13,374.31-18,456.63-7,406.36

Finding the Fourth Proportional to 13,374.31, 18,456.63 and 7,406.36

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Solution

The fourth proportional to 13,374.31, 18,456.63 and 7,406.36 is: 10,220.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,374.31 : 18,456.63 = 7,406.36 : x
  2. Step 2: Convert to fraction form
    13,374.31/18,456.63 = 7,406.36/x
  3. Step 3: Cross multiply
    13,374.31x = 18,456.63 × 7,406.36
  4. Step 4: Simplify right side
    13,374.31x = 136,696,446.17
  5. Step 5: Solve for x
    x = 136,696,446.17/13,374.31
  6. Step 6: Final answer
    x = 10,220.83

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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.