Home / 9,112.70-12,578.66-5,337.08

Finding the Fourth Proportional to 9,112.70, 12,578.66 and 5,337.08

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Solution

The fourth proportional to 9,112.70, 12,578.66 and 5,337.08 is: 7,367.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.70 : 12,578.66 = 5,337.08 : x
  2. Step 2: Convert to fraction form
    9,112.70/12,578.66 = 5,337.08/x
  3. Step 3: Cross multiply
    9,112.70x = 12,578.66 × 5,337.08
  4. Step 4: Simplify right side
    9,112.70x = 67,133,314.71
  5. Step 5: Solve for x
    x = 67,133,314.71/9,112.70
  6. Step 6: Final answer
    x = 7,367.01

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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.