Home / 15,886.06-21,925.38-8,814.76

Finding the Fourth Proportional to 15,886.06, 21,925.38 and 8,814.76

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Solution

The fourth proportional to 15,886.06, 21,925.38 and 8,814.76 is: 12,165.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886.06 : 21,925.38 = 8,814.76 : x
  2. Step 2: Convert to fraction form
    15,886.06/21,925.38 = 8,814.76/x
  3. Step 3: Cross multiply
    15,886.06x = 21,925.38 × 8,814.76
  4. Step 4: Simplify right side
    15,886.06x = 193,266,940.85
  5. Step 5: Solve for x
    x = 193,266,940.85/15,886.06
  6. Step 6: Final answer
    x = 12,165.82

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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.