Home / 6,987.04-10,478.92-2,055.36

Finding the Fourth Proportional to 6,987.04, 10,478.92 and 2,055.36

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Solution

The fourth proportional to 6,987.04, 10,478.92 and 2,055.36 is: 3,082.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.04 : 10,478.92 = 2,055.36 : x
  2. Step 2: Convert to fraction form
    6,987.04/10,478.92 = 2,055.36/x
  3. Step 3: Cross multiply
    6,987.04x = 10,478.92 × 2,055.36
  4. Step 4: Simplify right side
    6,987.04x = 21,537,953.01
  5. Step 5: Solve for x
    x = 21,537,953.01/6,987.04
  6. Step 6: Final answer
    x = 3,082.56

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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.