Home / 12,703.12-17,534.01-8,226.70

Finding the Fourth Proportional to 12,703.12, 17,534.01 and 8,226.70

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Solution

The fourth proportional to 12,703.12, 17,534.01 and 8,226.70 is: 11,355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703.12 : 17,534.01 = 8,226.70 : x
  2. Step 2: Convert to fraction form
    12,703.12/17,534.01 = 8,226.70/x
  3. Step 3: Cross multiply
    12,703.12x = 17,534.01 × 8,226.70
  4. Step 4: Simplify right side
    12,703.12x = 144,247,040.07
  5. Step 5: Solve for x
    x = 144,247,040.07/12,703.12
  6. Step 6: Final answer
    x = 11,355.25

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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.