Home / 14,223.18-21,349.80-7,988.52

Finding the Fourth Proportional to 14,223.18, 21,349.80 and 7,988.52

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Solution

The fourth proportional to 14,223.18, 21,349.80 and 7,988.52 is: 11,991.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,223.18 : 21,349.80 = 7,988.52 : x
  2. Step 2: Convert to fraction form
    14,223.18/21,349.80 = 7,988.52/x
  3. Step 3: Cross multiply
    14,223.18x = 21,349.80 × 7,988.52
  4. Step 4: Simplify right side
    14,223.18x = 170,553,304.30
  5. Step 5: Solve for x
    x = 170,553,304.30/14,223.18
  6. Step 6: Final answer
    x = 11,991.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.