Home / 16,389.22-22,616.40-9,316.30

Finding the Fourth Proportional to 16,389.22, 22,616.40 and 9,316.30

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Solution

The fourth proportional to 16,389.22, 22,616.40 and 9,316.30 is: 12,856.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,389.22 : 22,616.40 = 9,316.30 : x
  2. Step 2: Convert to fraction form
    16,389.22/22,616.40 = 9,316.30/x
  3. Step 3: Cross multiply
    16,389.22x = 22,616.40 × 9,316.30
  4. Step 4: Simplify right side
    16,389.22x = 210,701,167.32
  5. Step 5: Solve for x
    x = 210,701,167.32/16,389.22
  6. Step 6: Final answer
    x = 12,856.08

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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.