Home / 9,869.61-13,619.56-5,393.32

Finding the Fourth Proportional to 9,869.61, 13,619.56 and 5,393.32

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Solution

The fourth proportional to 9,869.61, 13,619.56 and 5,393.32 is: 7,442.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.61 : 13,619.56 = 5,393.32 : x
  2. Step 2: Convert to fraction form
    9,869.61/13,619.56 = 5,393.32/x
  3. Step 3: Cross multiply
    9,869.61x = 13,619.56 × 5,393.32
  4. Step 4: Simplify right side
    9,869.61x = 73,454,645.34
  5. Step 5: Solve for x
    x = 73,454,645.34/9,869.61
  6. Step 6: Final answer
    x = 7,442.51

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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.