Home / 16,389.79-22,617.92-9,316.03

Finding the Fourth Proportional to 16,389.79, 22,617.92 and 9,316.03

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Solution

The fourth proportional to 16,389.79, 22,617.92 and 9,316.03 is: 12,856.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,389.79 : 22,617.92 = 9,316.03 : x
  2. Step 2: Convert to fraction form
    16,389.79/22,617.92 = 9,316.03/x
  3. Step 3: Cross multiply
    16,389.79x = 22,617.92 × 9,316.03
  4. Step 4: Simplify right side
    16,389.79x = 210,709,221.26
  5. Step 5: Solve for x
    x = 210,709,221.26/16,389.79
  6. Step 6: Final answer
    x = 12,856.13

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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.