Home / 11,127.61-15,362.13-8,854.48

Finding the Fourth Proportional to 11,127.61, 15,362.13 and 8,854.48

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Solution

The fourth proportional to 11,127.61, 15,362.13 and 8,854.48 is: 12,223.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.61 : 15,362.13 = 8,854.48 : x
  2. Step 2: Convert to fraction form
    11,127.61/15,362.13 = 8,854.48/x
  3. Step 3: Cross multiply
    11,127.61x = 15,362.13 × 8,854.48
  4. Step 4: Simplify right side
    11,127.61x = 136,023,672.84
  5. Step 5: Solve for x
    x = 136,023,672.84/11,127.61
  6. Step 6: Final answer
    x = 12,223.98

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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.