Home / 16,391.36-22,618.56-9,316.40

Finding the Fourth Proportional to 16,391.36, 22,618.56 and 9,316.40

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Solution

The fourth proportional to 16,391.36, 22,618.56 and 9,316.40 is: 12,855.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,391.36 : 22,618.56 = 9,316.40 : x
  2. Step 2: Convert to fraction form
    16,391.36/22,618.56 = 9,316.40/x
  3. Step 3: Cross multiply
    16,391.36x = 22,618.56 × 9,316.40
  4. Step 4: Simplify right side
    16,391.36x = 210,723,552.38
  5. Step 5: Solve for x
    x = 210,723,552.38/16,391.36
  6. Step 6: Final answer
    x = 12,855.77

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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.