Home / 6,657.02-9,972.16-3,315.20

Finding the Fourth Proportional to 6,657.02, 9,972.16 and 3,315.20

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Solution

The fourth proportional to 6,657.02, 9,972.16 and 3,315.20 is: 4,966.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657.02 : 9,972.16 = 3,315.20 : x
  2. Step 2: Convert to fraction form
    6,657.02/9,972.16 = 3,315.20/x
  3. Step 3: Cross multiply
    6,657.02x = 9,972.16 × 3,315.20
  4. Step 4: Simplify right side
    6,657.02x = 33,059,704.83
  5. Step 5: Solve for x
    x = 33,059,704.83/6,657.02
  6. Step 6: Final answer
    x = 4,966.14

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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.