Home / 14,391.40-21,564.36-10,864.72

Finding the Fourth Proportional to 14,391.40, 21,564.36 and 10,864.72

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Solution

The fourth proportional to 14,391.40, 21,564.36 and 10,864.72 is: 16,279.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.40 : 21,564.36 = 10,864.72 : x
  2. Step 2: Convert to fraction form
    14,391.40/21,564.36 = 10,864.72/x
  3. Step 3: Cross multiply
    14,391.40x = 21,564.36 × 10,864.72
  4. Step 4: Simplify right side
    14,391.40x = 234,290,733.38
  5. Step 5: Solve for x
    x = 234,290,733.38/14,391.40
  6. Step 6: Final answer
    x = 16,279.91

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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.