Home / 7,445.90-11,151.72-4,151.70

Finding the Fourth Proportional to 7,445.90, 11,151.72 and 4,151.70

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Solution

The fourth proportional to 7,445.90, 11,151.72 and 4,151.70 is: 6,218.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445.90 : 11,151.72 = 4,151.70 : x
  2. Step 2: Convert to fraction form
    7,445.90/11,151.72 = 4,151.70/x
  3. Step 3: Cross multiply
    7,445.90x = 11,151.72 × 4,151.70
  4. Step 4: Simplify right side
    7,445.90x = 46,298,595.92
  5. Step 5: Solve for x
    x = 46,298,595.92/7,445.90
  6. Step 6: Final answer
    x = 6,218.00

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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.