Home / 6,987.77-10,488.53-5,133.68

Finding the Fourth Proportional to 6,987.77, 10,488.53 and 5,133.68

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Solution

The fourth proportional to 6,987.77, 10,488.53 and 5,133.68 is: 7,705.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.77 : 10,488.53 = 5,133.68 : x
  2. Step 2: Convert to fraction form
    6,987.77/10,488.53 = 5,133.68/x
  3. Step 3: Cross multiply
    6,987.77x = 10,488.53 × 5,133.68
  4. Step 4: Simplify right side
    6,987.77x = 53,844,756.69
  5. Step 5: Solve for x
    x = 53,844,756.69/6,987.77
  6. Step 6: Final answer
    x = 7,705.57

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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.