Home / 8,330.41-12,434.84-7,279.45

Finding the Fourth Proportional to 8,330.41, 12,434.84 and 7,279.45

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Solution

The fourth proportional to 8,330.41, 12,434.84 and 7,279.45 is: 10,866.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.41 : 12,434.84 = 7,279.45 : x
  2. Step 2: Convert to fraction form
    8,330.41/12,434.84 = 7,279.45/x
  3. Step 3: Cross multiply
    8,330.41x = 12,434.84 × 7,279.45
  4. Step 4: Simplify right side
    8,330.41x = 90,518,796.04
  5. Step 5: Solve for x
    x = 90,518,796.04/8,330.41
  6. Step 6: Final answer
    x = 10,866.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.