Home / 15,432.21-21,295.34-9,059.06

Finding the Fourth Proportional to 15,432.21, 21,295.34 and 9,059.06

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Solution

The fourth proportional to 15,432.21, 21,295.34 and 9,059.06 is: 12,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.21 : 21,295.34 = 9,059.06 : x
  2. Step 2: Convert to fraction form
    15,432.21/21,295.34 = 9,059.06/x
  3. Step 3: Cross multiply
    15,432.21x = 21,295.34 × 9,059.06
  4. Step 4: Simplify right side
    15,432.21x = 192,915,768.05
  5. Step 5: Solve for x
    x = 192,915,768.05/15,432.21
  6. Step 6: Final answer
    x = 12,500.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.