Home / 9,871.13-13,621.77-5,395.04

Finding the Fourth Proportional to 9,871.13, 13,621.77 and 5,395.04

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Solution

The fourth proportional to 9,871.13, 13,621.77 and 5,395.04 is: 7,444.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,871.13 : 13,621.77 = 5,395.04 : x
  2. Step 2: Convert to fraction form
    9,871.13/13,621.77 = 5,395.04/x
  3. Step 3: Cross multiply
    9,871.13x = 13,621.77 × 5,395.04
  4. Step 4: Simplify right side
    9,871.13x = 73,489,925.91
  5. Step 5: Solve for x
    x = 73,489,925.91/9,871.13
  6. Step 6: Final answer
    x = 7,444.94

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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.