Home / 10,570.54-15,850.95-5,638.90

Finding the Fourth Proportional to 10,570.54, 15,850.95 and 5,638.90

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Solution

The fourth proportional to 10,570.54, 15,850.95 and 5,638.90 is: 8,455.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,570.54 : 15,850.95 = 5,638.90 : x
  2. Step 2: Convert to fraction form
    10,570.54/15,850.95 = 5,638.90/x
  3. Step 3: Cross multiply
    10,570.54x = 15,850.95 × 5,638.90
  4. Step 4: Simplify right side
    10,570.54x = 89,381,921.96
  5. Step 5: Solve for x
    x = 89,381,921.96/10,570.54
  6. Step 6: Final answer
    x = 8,455.76

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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.