Home / 10,156.20-15,234.30-10,091.40

Finding the Fourth Proportional to 10,156.20, 15,234.30 and 10,091.40

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Solution

The fourth proportional to 10,156.20, 15,234.30 and 10,091.40 is: 15,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,156.20 : 15,234.30 = 10,091.40 : x
  2. Step 2: Convert to fraction form
    10,156.20/15,234.30 = 10,091.40/x
  3. Step 3: Cross multiply
    10,156.20x = 15,234.30 × 10,091.40
  4. Step 4: Simplify right side
    10,156.20x = 153,735,415.02
  5. Step 5: Solve for x
    x = 153,735,415.02/10,156.20
  6. Step 6: Final answer
    x = 15,137.10

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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.