Home / 15,304.70-21,118.74-8,589.44

Finding the Fourth Proportional to 15,304.70, 21,118.74 and 8,589.44

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Solution

The fourth proportional to 15,304.70, 21,118.74 and 8,589.44 is: 11,852.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,304.70 : 21,118.74 = 8,589.44 : x
  2. Step 2: Convert to fraction form
    15,304.70/21,118.74 = 8,589.44/x
  3. Step 3: Cross multiply
    15,304.70x = 21,118.74 × 8,589.44
  4. Step 4: Simplify right side
    15,304.70x = 181,398,150.11
  5. Step 5: Solve for x
    x = 181,398,150.11/15,304.70
  6. Step 6: Final answer
    x = 11,852.45

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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.