Home / 10,001.88-15,011.91-5,325.81

Finding the Fourth Proportional to 10,001.88, 15,011.91 and 5,325.81

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Solution

The fourth proportional to 10,001.88, 15,011.91 and 5,325.81 is: 7,993.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.88 : 15,011.91 = 5,325.81 : x
  2. Step 2: Convert to fraction form
    10,001.88/15,011.91 = 5,325.81/x
  3. Step 3: Cross multiply
    10,001.88x = 15,011.91 × 5,325.81
  4. Step 4: Simplify right side
    10,001.88x = 79,950,580.40
  5. Step 5: Solve for x
    x = 79,950,580.40/10,001.88
  6. Step 6: Final answer
    x = 7,993.56

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1.5x scale

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.