Home / 7,143.10-9,856.30-4,488.63

Finding the Fourth Proportional to 7,143.10, 9,856.30 and 4,488.63

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Solution

The fourth proportional to 7,143.10, 9,856.30 and 4,488.63 is: 6,193.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.10 : 9,856.30 = 4,488.63 : x
  2. Step 2: Convert to fraction form
    7,143.10/9,856.30 = 4,488.63/x
  3. Step 3: Cross multiply
    7,143.10x = 9,856.30 × 4,488.63
  4. Step 4: Simplify right side
    7,143.10x = 44,241,234.59
  5. Step 5: Solve for x
    x = 44,241,234.59/7,143.10
  6. Step 6: Final answer
    x = 6,193.57

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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.