Home / 10,305.63-14,221.71-5,589.81

Finding the Fourth Proportional to 10,305.63, 14,221.71 and 5,589.81

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Solution

The fourth proportional to 10,305.63, 14,221.71 and 5,589.81 is: 7,713.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.63 : 14,221.71 = 5,589.81 : x
  2. Step 2: Convert to fraction form
    10,305.63/14,221.71 = 5,589.81/x
  3. Step 3: Cross multiply
    10,305.63x = 14,221.71 × 5,589.81
  4. Step 4: Simplify right side
    10,305.63x = 79,496,656.78
  5. Step 5: Solve for x
    x = 79,496,656.78/10,305.63
  6. Step 6: Final answer
    x = 7,713.91

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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.