Home / 7,430.54-11,151.20-5,987.12

Finding the Fourth Proportional to 7,430.54, 11,151.20 and 5,987.12

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Solution

The fourth proportional to 7,430.54, 11,151.20 and 5,987.12 is: 8,985.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430.54 : 11,151.20 = 5,987.12 : x
  2. Step 2: Convert to fraction form
    7,430.54/11,151.20 = 5,987.12/x
  3. Step 3: Cross multiply
    7,430.54x = 11,151.20 × 5,987.12
  4. Step 4: Simplify right side
    7,430.54x = 66,763,531.76
  5. Step 5: Solve for x
    x = 66,763,531.76/7,430.54
  6. Step 6: Final answer
    x = 8,985.02

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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.