Home / 14,251.17-19,661.81-9,221.75

Finding the Fourth Proportional to 14,251.17, 19,661.81 and 9,221.75

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Solution

The fourth proportional to 14,251.17, 19,661.81 and 9,221.75 is: 12,722.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,251.17 : 19,661.81 = 9,221.75 : x
  2. Step 2: Convert to fraction form
    14,251.17/19,661.81 = 9,221.75/x
  3. Step 3: Cross multiply
    14,251.17x = 19,661.81 × 9,221.75
  4. Step 4: Simplify right side
    14,251.17x = 181,316,303.49
  5. Step 5: Solve for x
    x = 181,316,303.49/14,251.17
  6. Step 6: Final answer
    x = 12,722.91

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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.