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Finding the Fourth Proportional to 25,999.60, 38,999.40 and 6,278.08

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Solution

The fourth proportional to 25,999.60, 38,999.40 and 6,278.08 is: 9,417.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,999.60 : 38,999.40 = 6,278.08 : x
  2. Step 2: Convert to fraction form
    25,999.60/38,999.40 = 6,278.08/x
  3. Step 3: Cross multiply
    25,999.60x = 38,999.40 × 6,278.08
  4. Step 4: Simplify right side
    25,999.60x = 244,841,353.15
  5. Step 5: Solve for x
    x = 244,841,353.15/25,999.60
  6. Step 6: Final answer
    x = 9,417.12

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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.