Home / 7,981.13-11,020.93-5,002.09

Finding the Fourth Proportional to 7,981.13, 11,020.93 and 5,002.09

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Solution

The fourth proportional to 7,981.13, 11,020.93 and 5,002.09 is: 6,907.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.13 : 11,020.93 = 5,002.09 : x
  2. Step 2: Convert to fraction form
    7,981.13/11,020.93 = 5,002.09/x
  3. Step 3: Cross multiply
    7,981.13x = 11,020.93 × 5,002.09
  4. Step 4: Simplify right side
    7,981.13x = 55,127,643.69
  5. Step 5: Solve for x
    x = 55,127,643.69/7,981.13
  6. Step 6: Final answer
    x = 6,907.25

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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.