Home / 12,302.40-18,444.64-8,394.56

Finding the Fourth Proportional to 12,302.40, 18,444.64 and 8,394.56

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Solution

The fourth proportional to 12,302.40, 18,444.64 and 8,394.56 is: 12,585.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302.40 : 18,444.64 = 8,394.56 : x
  2. Step 2: Convert to fraction form
    12,302.40/18,444.64 = 8,394.56/x
  3. Step 3: Cross multiply
    12,302.40x = 18,444.64 × 8,394.56
  4. Step 4: Simplify right side
    12,302.40x = 154,834,637.16
  5. Step 5: Solve for x
    x = 154,834,637.16/12,302.40
  6. Step 6: Final answer
    x = 12,585.73

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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.