Home / 7,328.90-10,115.18-4,345.76

Finding the Fourth Proportional to 7,328.90, 10,115.18 and 4,345.76

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Solution

The fourth proportional to 7,328.90, 10,115.18 and 4,345.76 is: 5,997.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.90 : 10,115.18 = 4,345.76 : x
  2. Step 2: Convert to fraction form
    7,328.90/10,115.18 = 4,345.76/x
  3. Step 3: Cross multiply
    7,328.90x = 10,115.18 × 4,345.76
  4. Step 4: Simplify right side
    7,328.90x = 43,958,144.64
  5. Step 5: Solve for x
    x = 43,958,144.64/7,328.90
  6. Step 6: Final answer
    x = 5,997.92

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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.