Home / 11,981.08-16,531.95-6,675.76

Finding the Fourth Proportional to 11,981.08, 16,531.95 and 6,675.76

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Solution

The fourth proportional to 11,981.08, 16,531.95 and 6,675.76 is: 9,211.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.08 : 16,531.95 = 6,675.76 : x
  2. Step 2: Convert to fraction form
    11,981.08/16,531.95 = 6,675.76/x
  3. Step 3: Cross multiply
    11,981.08x = 16,531.95 × 6,675.76
  4. Step 4: Simplify right side
    11,981.08x = 110,363,330.53
  5. Step 5: Solve for x
    x = 110,363,330.53/11,981.08
  6. Step 6: Final answer
    x = 9,211.47

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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.