Home / 9,772.20-14,664.70-5,612.20

Finding the Fourth Proportional to 9,772.20, 14,664.70 and 5,612.20

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Solution

The fourth proportional to 9,772.20, 14,664.70 and 5,612.20 is: 8,421.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,772.20 : 14,664.70 = 5,612.20 : x
  2. Step 2: Convert to fraction form
    9,772.20/14,664.70 = 5,612.20/x
  3. Step 3: Cross multiply
    9,772.20x = 14,664.70 × 5,612.20
  4. Step 4: Simplify right side
    9,772.20x = 82,301,229.34
  5. Step 5: Solve for x
    x = 82,301,229.34/9,772.20
  6. Step 6: Final answer
    x = 8,421.98

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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.