Home / 10,011.76-13,811.85-5,761.89

Finding the Fourth Proportional to 10,011.76, 13,811.85 and 5,761.89

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Solution

The fourth proportional to 10,011.76, 13,811.85 and 5,761.89 is: 7,948.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.76 : 13,811.85 = 5,761.89 : x
  2. Step 2: Convert to fraction form
    10,011.76/13,811.85 = 5,761.89/x
  3. Step 3: Cross multiply
    10,011.76x = 13,811.85 × 5,761.89
  4. Step 4: Simplify right side
    10,011.76x = 79,582,360.40
  5. Step 5: Solve for x
    x = 79,582,360.40/10,011.76
  6. Step 6: Final answer
    x = 7,948.89

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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.