Home / 9,191.51-12,680.19-6,126.05

Finding the Fourth Proportional to 9,191.51, 12,680.19 and 6,126.05

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Solution

The fourth proportional to 9,191.51, 12,680.19 and 6,126.05 is: 8,451.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,191.51 : 12,680.19 = 6,126.05 : x
  2. Step 2: Convert to fraction form
    9,191.51/12,680.19 = 6,126.05/x
  3. Step 3: Cross multiply
    9,191.51x = 12,680.19 × 6,126.05
  4. Step 4: Simplify right side
    9,191.51x = 77,679,477.95
  5. Step 5: Solve for x
    x = 77,679,477.95/9,191.51
  6. Step 6: Final answer
    x = 8,451.22

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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.