Home / 15,872.60-21,902.64-8,798.87

Finding the Fourth Proportional to 15,872.60, 21,902.64 and 8,798.87

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Solution

The fourth proportional to 15,872.60, 21,902.64 and 8,798.87 is: 12,141.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,872.60 : 21,902.64 = 8,798.87 : x
  2. Step 2: Convert to fraction form
    15,872.60/21,902.64 = 8,798.87/x
  3. Step 3: Cross multiply
    15,872.60x = 21,902.64 × 8,798.87
  4. Step 4: Simplify right side
    15,872.60x = 192,718,482.02
  5. Step 5: Solve for x
    x = 192,718,482.02/15,872.60
  6. Step 6: Final answer
    x = 12,141.58

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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.