Home / 7,430.67-11,145.10-4,312.38

Finding the Fourth Proportional to 7,430.67, 11,145.10 and 4,312.38

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Solution

The fourth proportional to 7,430.67, 11,145.10 and 4,312.38 is: 6,468.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430.67 : 11,145.10 = 4,312.38 : x
  2. Step 2: Convert to fraction form
    7,430.67/11,145.10 = 4,312.38/x
  3. Step 3: Cross multiply
    7,430.67x = 11,145.10 × 4,312.38
  4. Step 4: Simplify right side
    7,430.67x = 48,061,839.83
  5. Step 5: Solve for x
    x = 48,061,839.83/7,430.67
  6. Step 6: Final answer
    x = 6,468.03

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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.