Home / 10,025.79-15,031.85-5,085.90

Finding the Fourth Proportional to 10,025.79, 15,031.85 and 5,085.90

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Solution

The fourth proportional to 10,025.79, 15,031.85 and 5,085.90 is: 7,625.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,025.79 : 15,031.85 = 5,085.90 : x
  2. Step 2: Convert to fraction form
    10,025.79/15,031.85 = 5,085.90/x
  3. Step 3: Cross multiply
    10,025.79x = 15,031.85 × 5,085.90
  4. Step 4: Simplify right side
    10,025.79x = 76,450,460.49
  5. Step 5: Solve for x
    x = 76,450,460.49/10,025.79
  6. Step 6: Final answer
    x = 7,625.38

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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.