Home / 9,117.74-12,582.39-5,140.13

Finding the Fourth Proportional to 9,117.74, 12,582.39 and 5,140.13

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Solution

The fourth proportional to 9,117.74, 12,582.39 and 5,140.13 is: 7,093.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.74 : 12,582.39 = 5,140.13 : x
  2. Step 2: Convert to fraction form
    9,117.74/12,582.39 = 5,140.13/x
  3. Step 3: Cross multiply
    9,117.74x = 12,582.39 × 5,140.13
  4. Step 4: Simplify right side
    9,117.74x = 64,675,120.31
  5. Step 5: Solve for x
    x = 64,675,120.31/9,117.74
  6. Step 6: Final answer
    x = 7,093.33

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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.