Home / 9,400.74-12,972.51-5,151.03

Finding the Fourth Proportional to 9,400.74, 12,972.51 and 5,151.03

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Solution

The fourth proportional to 9,400.74, 12,972.51 and 5,151.03 is: 7,108.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,400.74 : 12,972.51 = 5,151.03 : x
  2. Step 2: Convert to fraction form
    9,400.74/12,972.51 = 5,151.03/x
  3. Step 3: Cross multiply
    9,400.74x = 12,972.51 × 5,151.03
  4. Step 4: Simplify right side
    9,400.74x = 66,821,788.19
  5. Step 5: Solve for x
    x = 66,821,788.19/9,400.74
  6. Step 6: Final answer
    x = 7,108.14

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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.