Home / 9,869.60-13,619.75-5,393.35

Finding the Fourth Proportional to 9,869.60, 13,619.75 and 5,393.35

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Solution

The fourth proportional to 9,869.60, 13,619.75 and 5,393.35 is: 7,442.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.60 : 13,619.75 = 5,393.35 : x
  2. Step 2: Convert to fraction form
    9,869.60/13,619.75 = 5,393.35/x
  3. Step 3: Cross multiply
    9,869.60x = 13,619.75 × 5,393.35
  4. Step 4: Simplify right side
    9,869.60x = 73,456,058.10
  5. Step 5: Solve for x
    x = 73,456,058.10/9,869.60
  6. Step 6: Final answer
    x = 7,442.66

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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.