Home / 11,253.47-15,521.15-6,772.55

Finding the Fourth Proportional to 11,253.47, 15,521.15 and 6,772.55

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Solution

The fourth proportional to 11,253.47, 15,521.15 and 6,772.55 is: 9,340.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,253.47 : 15,521.15 = 6,772.55 : x
  2. Step 2: Convert to fraction form
    11,253.47/15,521.15 = 6,772.55/x
  3. Step 3: Cross multiply
    11,253.47x = 15,521.15 × 6,772.55
  4. Step 4: Simplify right side
    11,253.47x = 105,117,703.76
  5. Step 5: Solve for x
    x = 105,117,703.76/11,253.47
  6. Step 6: Final answer
    x = 9,340.92

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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.