Home / 10,011.11-15,018.77-2,991.67

Finding the Fourth Proportional to 10,011.11, 15,018.77 and 2,991.67

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Solution

The fourth proportional to 10,011.11, 15,018.77 and 2,991.67 is: 4,488.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.11 : 15,018.77 = 2,991.67 : x
  2. Step 2: Convert to fraction form
    10,011.11/15,018.77 = 2,991.67/x
  3. Step 3: Cross multiply
    10,011.11x = 15,018.77 × 2,991.67
  4. Step 4: Simplify right side
    10,011.11x = 44,931,173.58
  5. Step 5: Solve for x
    x = 44,931,173.58/10,011.11
  6. Step 6: Final answer
    x = 4,488.13

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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.