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Finding the Fourth Proportional to 25,806.60, 38,710.02 and 7,086.90

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Solution

The fourth proportional to 25,806.60, 38,710.02 and 7,086.90 is: 10,630.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,806.60 : 38,710.02 = 7,086.90 : x
  2. Step 2: Convert to fraction form
    25,806.60/38,710.02 = 7,086.90/x
  3. Step 3: Cross multiply
    25,806.60x = 38,710.02 × 7,086.90
  4. Step 4: Simplify right side
    25,806.60x = 274,334,040.74
  5. Step 5: Solve for x
    x = 274,334,040.74/25,806.60
  6. Step 6: Final answer
    x = 10,630.38

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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.