Home / 15,438.61-23,156.39-4,345.05

Finding the Fourth Proportional to 15,438.61, 23,156.39 and 4,345.05

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Solution

The fourth proportional to 15,438.61, 23,156.39 and 4,345.05 is: 6,517.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438.61 : 23,156.39 = 4,345.05 : x
  2. Step 2: Convert to fraction form
    15,438.61/23,156.39 = 4,345.05/x
  3. Step 3: Cross multiply
    15,438.61x = 23,156.39 × 4,345.05
  4. Step 4: Simplify right side
    15,438.61x = 100,615,770.07
  5. Step 5: Solve for x
    x = 100,615,770.07/15,438.61
  6. Step 6: Final answer
    x = 6,517.15

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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.