Home / 16,387.01-22,621.78-12,807.16

Finding the Fourth Proportional to 16,387.01, 22,621.78 and 12,807.16

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Solution

The fourth proportional to 16,387.01, 22,621.78 and 12,807.16 is: 17,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,387.01 : 22,621.78 = 12,807.16 : x
  2. Step 2: Convert to fraction form
    16,387.01/22,621.78 = 12,807.16/x
  3. Step 3: Cross multiply
    16,387.01x = 22,621.78 × 12,807.16
  4. Step 4: Simplify right side
    16,387.01x = 289,720,842.65
  5. Step 5: Solve for x
    x = 289,720,842.65/16,387.01
  6. Step 6: Final answer
    x = 17,679.91

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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.