Home / 10,331.51-14,257.58-5,615.80

Finding the Fourth Proportional to 10,331.51, 14,257.58 and 5,615.80

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Solution

The fourth proportional to 10,331.51, 14,257.58 and 5,615.80 is: 7,749.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.51 : 14,257.58 = 5,615.80 : x
  2. Step 2: Convert to fraction form
    10,331.51/14,257.58 = 5,615.80/x
  3. Step 3: Cross multiply
    10,331.51x = 14,257.58 × 5,615.80
  4. Step 4: Simplify right side
    10,331.51x = 80,067,717.76
  5. Step 5: Solve for x
    x = 80,067,717.76/10,331.51
  6. Step 6: Final answer
    x = 7,749.86

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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.