Home / 12,155.25-18,233.30-4,256.17

Finding the Fourth Proportional to 12,155.25, 18,233.30 and 4,256.17

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Solution

The fourth proportional to 12,155.25, 18,233.30 and 4,256.17 is: 6,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,155.25 : 18,233.30 = 4,256.17 : x
  2. Step 2: Convert to fraction form
    12,155.25/18,233.30 = 4,256.17/x
  3. Step 3: Cross multiply
    12,155.25x = 18,233.30 × 4,256.17
  4. Step 4: Simplify right side
    12,155.25x = 77,604,024.46
  5. Step 5: Solve for x
    x = 77,604,024.46/12,155.25
  6. Step 6: Final answer
    x = 6,384.40

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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.