Home / 11,117.04-15,347.88-8,871.72

Finding the Fourth Proportional to 11,117.04, 15,347.88 and 8,871.72

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Solution

The fourth proportional to 11,117.04, 15,347.88 and 8,871.72 is: 12,248.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.04 : 15,347.88 = 8,871.72 : x
  2. Step 2: Convert to fraction form
    11,117.04/15,347.88 = 8,871.72/x
  3. Step 3: Cross multiply
    11,117.04x = 15,347.88 × 8,871.72
  4. Step 4: Simplify right side
    11,117.04x = 136,162,093.95
  5. Step 5: Solve for x
    x = 136,162,093.95/11,117.04
  6. Step 6: Final answer
    x = 12,248.05

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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.