Home / 9,340.14-12,888.81-5,148.39

Finding the Fourth Proportional to 9,340.14, 12,888.81 and 5,148.39

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Solution

The fourth proportional to 9,340.14, 12,888.81 and 5,148.39 is: 7,104.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,340.14 : 12,888.81 = 5,148.39 : x
  2. Step 2: Convert to fraction form
    9,340.14/12,888.81 = 5,148.39/x
  3. Step 3: Cross multiply
    9,340.14x = 12,888.81 × 5,148.39
  4. Step 4: Simplify right side
    9,340.14x = 66,356,620.52
  5. Step 5: Solve for x
    x = 66,356,620.52/9,340.14
  6. Step 6: Final answer
    x = 7,104.46

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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.