Home / 11,382.47-15,708.85-6,907.36

Finding the Fourth Proportional to 11,382.47, 15,708.85 and 6,907.36

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Solution

The fourth proportional to 11,382.47, 15,708.85 and 6,907.36 is: 9,532.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,382.47 : 15,708.85 = 6,907.36 : x
  2. Step 2: Convert to fraction form
    11,382.47/15,708.85 = 6,907.36/x
  3. Step 3: Cross multiply
    11,382.47x = 15,708.85 × 6,907.36
  4. Step 4: Simplify right side
    11,382.47x = 108,506,647.60
  5. Step 5: Solve for x
    x = 108,506,647.60/11,382.47
  6. Step 6: Final answer
    x = 9,532.79

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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.