Home / 12,252.30-18,378.45-6,347.40

Finding the Fourth Proportional to 12,252.30, 18,378.45 and 6,347.40

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Solution

The fourth proportional to 12,252.30, 18,378.45 and 6,347.40 is: 9,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.30 : 18,378.45 = 6,347.40 : x
  2. Step 2: Convert to fraction form
    12,252.30/18,378.45 = 6,347.40/x
  3. Step 3: Cross multiply
    12,252.30x = 18,378.45 × 6,347.40
  4. Step 4: Simplify right side
    12,252.30x = 116,655,373.53
  5. Step 5: Solve for x
    x = 116,655,373.53/12,252.30
  6. Step 6: Final answer
    x = 9,521.10

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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.