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Finding the Fourth Proportional to 15,685.60, 23,530.02 and 8,298.40

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Solution

The fourth proportional to 15,685.60, 23,530.02 and 8,298.40 is: 12,448.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,685.60 : 23,530.02 = 8,298.40 : x
  2. Step 2: Convert to fraction form
    15,685.60/23,530.02 = 8,298.40/x
  3. Step 3: Cross multiply
    15,685.60x = 23,530.02 × 8,298.40
  4. Step 4: Simplify right side
    15,685.60x = 195,261,517.97
  5. Step 5: Solve for x
    x = 195,261,517.97/15,685.60
  6. Step 6: Final answer
    x = 12,448.46

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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.