Home / 8,710.34-12,020.45-5,351.21

Finding the Fourth Proportional to 8,710.34, 12,020.45 and 5,351.21

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Solution

The fourth proportional to 8,710.34, 12,020.45 and 5,351.21 is: 7,384.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.34 : 12,020.45 = 5,351.21 : x
  2. Step 2: Convert to fraction form
    8,710.34/12,020.45 = 5,351.21/x
  3. Step 3: Cross multiply
    8,710.34x = 12,020.45 × 5,351.21
  4. Step 4: Simplify right side
    8,710.34x = 64,324,008.18
  5. Step 5: Solve for x
    x = 64,324,008.18/8,710.34
  6. Step 6: Final answer
    x = 7,384.79

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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.