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Finding the Fourth Proportional to 10,304.40, 14,220.18 and 5,828.20

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Solution

The fourth proportional to 10,304.40, 14,220.18 and 5,828.20 is: 8,042.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,304.40 : 14,220.18 = 5,828.20 : x
  2. Step 2: Convert to fraction form
    10,304.40/14,220.18 = 5,828.20/x
  3. Step 3: Cross multiply
    10,304.40x = 14,220.18 × 5,828.20
  4. Step 4: Simplify right side
    10,304.40x = 82,878,053.08
  5. Step 5: Solve for x
    x = 82,878,053.08/10,304.40
  6. Step 6: Final answer
    x = 8,042.98

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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.