Home / 8,707.23-11,988.66-7,684.13

Finding the Fourth Proportional to 8,707.23, 11,988.66 and 7,684.13

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Solution

The fourth proportional to 8,707.23, 11,988.66 and 7,684.13 is: 10,580.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.23 : 11,988.66 = 7,684.13 : x
  2. Step 2: Convert to fraction form
    8,707.23/11,988.66 = 7,684.13/x
  3. Step 3: Cross multiply
    8,707.23x = 11,988.66 × 7,684.13
  4. Step 4: Simplify right side
    8,707.23x = 92,122,480.75
  5. Step 5: Solve for x
    x = 92,122,480.75/8,707.23
  6. Step 6: Final answer
    x = 10,580.00

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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.