Home / 15,315.12-22,964.46-6,990.64

Finding the Fourth Proportional to 15,315.12, 22,964.46 and 6,990.64

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Solution

The fourth proportional to 15,315.12, 22,964.46 and 6,990.64 is: 10,482.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315.12 : 22,964.46 = 6,990.64 : x
  2. Step 2: Convert to fraction form
    15,315.12/22,964.46 = 6,990.64/x
  3. Step 3: Cross multiply
    15,315.12x = 22,964.46 × 6,990.64
  4. Step 4: Simplify right side
    15,315.12x = 160,536,272.65
  5. Step 5: Solve for x
    x = 160,536,272.65/15,315.12
  6. Step 6: Final answer
    x = 10,482.21

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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.