Home / 15,904.42-21,947.76-8,830.72

Finding the Fourth Proportional to 15,904.42, 21,947.76 and 8,830.72

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Solution

The fourth proportional to 15,904.42, 21,947.76 and 8,830.72 is: 12,186.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,904.42 : 21,947.76 = 8,830.72 : x
  2. Step 2: Convert to fraction form
    15,904.42/21,947.76 = 8,830.72/x
  3. Step 3: Cross multiply
    15,904.42x = 21,947.76 × 8,830.72
  4. Step 4: Simplify right side
    15,904.42x = 193,814,523.19
  5. Step 5: Solve for x
    x = 193,814,523.19/15,904.42
  6. Step 6: Final answer
    x = 12,186.21

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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.