Home / 9,869.43-13,619.88-5,393.25

Finding the Fourth Proportional to 9,869.43, 13,619.88 and 5,393.25

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Solution

The fourth proportional to 9,869.43, 13,619.88 and 5,393.25 is: 7,442.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.43 : 13,619.88 = 5,393.25 : x
  2. Step 2: Convert to fraction form
    9,869.43/13,619.88 = 5,393.25/x
  3. Step 3: Cross multiply
    9,869.43x = 13,619.88 × 5,393.25
  4. Step 4: Simplify right side
    9,869.43x = 73,455,417.81
  5. Step 5: Solve for x
    x = 73,455,417.81/9,869.43
  6. Step 6: Final answer
    x = 7,442.72

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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.