Home / 9,076.32-12,528-6,721.92

Finding the Fourth Proportional to 9,076.32, 12,528 and 6,721.92

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Solution

The fourth proportional to 9,076.32, 12,528 and 6,721.92 is: 9,278.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,076.32 : 12,528 = 6,721.92 : x
  2. Step 2: Convert to fraction form
    9,076.32/12,528 = 6,721.92/x
  3. Step 3: Cross multiply
    9,076.32x = 12,528 × 6,721.92
  4. Step 4: Simplify right side
    9,076.32x = 84,212,213.76
  5. Step 5: Solve for x
    x = 84,212,213.76/9,076.32
  6. Step 6: Final answer
    x = 9,278.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.