Home / 14,358.78-21,516.18-9,661.38

Finding the Fourth Proportional to 14,358.78, 21,516.18 and 9,661.38

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Solution

The fourth proportional to 14,358.78, 21,516.18 and 9,661.38 is: 14,477.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.78 : 21,516.18 = 9,661.38 : x
  2. Step 2: Convert to fraction form
    14,358.78/21,516.18 = 9,661.38/x
  3. Step 3: Cross multiply
    14,358.78x = 21,516.18 × 9,661.38
  4. Step 4: Simplify right side
    14,358.78x = 207,875,991.13
  5. Step 5: Solve for x
    x = 207,875,991.13/14,358.78
  6. Step 6: Final answer
    x = 14,477.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.