Home / 7,438.90-11,161.98-5,261.62

Finding the Fourth Proportional to 7,438.90, 11,161.98 and 5,261.62

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Solution

The fourth proportional to 7,438.90, 11,161.98 and 5,261.62 is: 7,895.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.90 : 11,161.98 = 5,261.62 : x
  2. Step 2: Convert to fraction form
    7,438.90/11,161.98 = 5,261.62/x
  3. Step 3: Cross multiply
    7,438.90x = 11,161.98 × 5,261.62
  4. Step 4: Simplify right side
    7,438.90x = 58,730,097.21
  5. Step 5: Solve for x
    x = 58,730,097.21/7,438.90
  6. Step 6: Final answer
    x = 7,895.00

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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.