Home / 9,101.07-12,559.16-5,121.95

Finding the Fourth Proportional to 9,101.07, 12,559.16 and 5,121.95

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Solution

The fourth proportional to 9,101.07, 12,559.16 and 5,121.95 is: 7,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,101.07 : 12,559.16 = 5,121.95 : x
  2. Step 2: Convert to fraction form
    9,101.07/12,559.16 = 5,121.95/x
  3. Step 3: Cross multiply
    9,101.07x = 12,559.16 × 5,121.95
  4. Step 4: Simplify right side
    9,101.07x = 64,327,301.16
  5. Step 5: Solve for x
    x = 64,327,301.16/9,101.07
  6. Step 6: Final answer
    x = 7,068.10

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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.