Home / 15,274.64-21,077.25-8,902.58

Finding the Fourth Proportional to 15,274.64, 21,077.25 and 8,902.58

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Solution

The fourth proportional to 15,274.64, 21,077.25 and 8,902.58 is: 12,284.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,274.64 : 21,077.25 = 8,902.58 : x
  2. Step 2: Convert to fraction form
    15,274.64/21,077.25 = 8,902.58/x
  3. Step 3: Cross multiply
    15,274.64x = 21,077.25 × 8,902.58
  4. Step 4: Simplify right side
    15,274.64x = 187,641,904.31
  5. Step 5: Solve for x
    x = 187,641,904.31/15,274.64
  6. Step 6: Final answer
    x = 12,284.54

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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.