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Finding the Fourth Proportional to 7,987.36, 11,030.16 and 7,551.04

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Solution

The fourth proportional to 7,987.36, 11,030.16 and 7,551.04 is: 10,427.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.36 : 11,030.16 = 7,551.04 : x
  2. Step 2: Convert to fraction form
    7,987.36/11,030.16 = 7,551.04/x
  3. Step 3: Cross multiply
    7,987.36x = 11,030.16 × 7,551.04
  4. Step 4: Simplify right side
    7,987.36x = 83,289,179.37
  5. Step 5: Solve for x
    x = 83,289,179.37/7,987.36
  6. Step 6: Final answer
    x = 10,427.62

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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.