Home / 25,418.64-38,133.06-8,779.29

Finding the Fourth Proportional to 25,418.64, 38,133.06 and 8,779.29

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Solution

The fourth proportional to 25,418.64, 38,133.06 and 8,779.29 is: 13,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,418.64 : 38,133.06 = 8,779.29 : x
  2. Step 2: Convert to fraction form
    25,418.64/38,133.06 = 8,779.29/x
  3. Step 3: Cross multiply
    25,418.64x = 38,133.06 × 8,779.29
  4. Step 4: Simplify right side
    25,418.64x = 334,781,192.33
  5. Step 5: Solve for x
    x = 334,781,192.33/25,418.64
  6. Step 6: Final answer
    x = 13,170.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.