Home / 8,274.57-11,430.51-7,527.21

Finding the Fourth Proportional to 8,274.57, 11,430.51 and 7,527.21

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Solution

The fourth proportional to 8,274.57, 11,430.51 and 7,527.21 is: 10,398.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,274.57 : 11,430.51 = 7,527.21 : x
  2. Step 2: Convert to fraction form
    8,274.57/11,430.51 = 7,527.21/x
  3. Step 3: Cross multiply
    8,274.57x = 11,430.51 × 7,527.21
  4. Step 4: Simplify right side
    8,274.57x = 86,039,849.18
  5. Step 5: Solve for x
    x = 86,039,849.18/8,274.57
  6. Step 6: Final answer
    x = 10,398.11

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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.