Home / 12,342.24-18,521.28-4,551.12

Finding the Fourth Proportional to 12,342.24, 18,521.28 and 4,551.12

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Solution

The fourth proportional to 12,342.24, 18,521.28 and 4,551.12 is: 6,829.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,342.24 : 18,521.28 = 4,551.12 : x
  2. Step 2: Convert to fraction form
    12,342.24/18,521.28 = 4,551.12/x
  3. Step 3: Cross multiply
    12,342.24x = 18,521.28 × 4,551.12
  4. Step 4: Simplify right side
    12,342.24x = 84,292,567.83
  5. Step 5: Solve for x
    x = 84,292,567.83/12,342.24
  6. Step 6: Final answer
    x = 6,829.60

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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.