Home / 16,389.01-22,616.80-9,315.43

Finding the Fourth Proportional to 16,389.01, 22,616.80 and 9,315.43

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Solution

The fourth proportional to 16,389.01, 22,616.80 and 9,315.43 is: 12,855.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,389.01 : 22,616.80 = 9,315.43 : x
  2. Step 2: Convert to fraction form
    16,389.01/22,616.80 = 9,315.43/x
  3. Step 3: Cross multiply
    16,389.01x = 22,616.80 × 9,315.43
  4. Step 4: Simplify right side
    16,389.01x = 210,685,217.22
  5. Step 5: Solve for x
    x = 210,685,217.22/16,389.01
  6. Step 6: Final answer
    x = 12,855.27

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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.