Home / 8,119.63-12,098.57-7,247.26

Finding the Fourth Proportional to 8,119.63, 12,098.57 and 7,247.26

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Solution

The fourth proportional to 8,119.63, 12,098.57 and 7,247.26 is: 10,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.63 : 12,098.57 = 7,247.26 : x
  2. Step 2: Convert to fraction form
    8,119.63/12,098.57 = 7,247.26/x
  3. Step 3: Cross multiply
    8,119.63x = 12,098.57 × 7,247.26
  4. Step 4: Simplify right side
    8,119.63x = 87,681,482.42
  5. Step 5: Solve for x
    x = 87,681,482.42/8,119.63
  6. Step 6: Final answer
    x = 10,798.70

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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.