Home / 12,156.84-18,227.95-4,752.47

Finding the Fourth Proportional to 12,156.84, 18,227.95 and 4,752.47

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Solution

The fourth proportional to 12,156.84, 18,227.95 and 4,752.47 is: 7,125.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.84 : 18,227.95 = 4,752.47 : x
  2. Step 2: Convert to fraction form
    12,156.84/18,227.95 = 4,752.47/x
  3. Step 3: Cross multiply
    12,156.84x = 18,227.95 × 4,752.47
  4. Step 4: Simplify right side
    12,156.84x = 86,627,785.54
  5. Step 5: Solve for x
    x = 86,627,785.54/12,156.84
  6. Step 6: Final answer
    x = 7,125.85

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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.