Home / 15,887.18-21,925.35-8,814.38

Finding the Fourth Proportional to 15,887.18, 21,925.35 and 8,814.38

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Solution

The fourth proportional to 15,887.18, 21,925.35 and 8,814.38 is: 12,164.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,887.18 : 21,925.35 = 8,814.38 : x
  2. Step 2: Convert to fraction form
    15,887.18/21,925.35 = 8,814.38/x
  3. Step 3: Cross multiply
    15,887.18x = 21,925.35 × 8,814.38
  4. Step 4: Simplify right side
    15,887.18x = 193,258,366.53
  5. Step 5: Solve for x
    x = 193,258,366.53/15,887.18
  6. Step 6: Final answer
    x = 12,164.42

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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.