Home / 12,110.08-16,722.84-7,641.76

Finding the Fourth Proportional to 12,110.08, 16,722.84 and 7,641.76

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Solution

The fourth proportional to 12,110.08, 16,722.84 and 7,641.76 is: 10,552.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.08 : 16,722.84 = 7,641.76 : x
  2. Step 2: Convert to fraction form
    12,110.08/16,722.84 = 7,641.76/x
  3. Step 3: Cross multiply
    12,110.08x = 16,722.84 × 7,641.76
  4. Step 4: Simplify right side
    12,110.08x = 127,791,929.80
  5. Step 5: Solve for x
    x = 127,791,929.80/12,110.08
  6. Step 6: Final answer
    x = 10,552.53

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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.