Home / 9,821.20-14,731.80-9,675.40

Finding the Fourth Proportional to 9,821.20, 14,731.80 and 9,675.40

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Solution

The fourth proportional to 9,821.20, 14,731.80 and 9,675.40 is: 14,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821.20 : 14,731.80 = 9,675.40 : x
  2. Step 2: Convert to fraction form
    9,821.20/14,731.80 = 9,675.40/x
  3. Step 3: Cross multiply
    9,821.20x = 14,731.80 × 9,675.40
  4. Step 4: Simplify right side
    9,821.20x = 142,536,057.72
  5. Step 5: Solve for x
    x = 142,536,057.72/9,821.20
  6. Step 6: Final answer
    x = 14,513.10

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Similar ratio
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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.