Home / 12,698.48-17,507.62-9,861.04

Finding the Fourth Proportional to 12,698.48, 17,507.62 and 9,861.04

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Solution

The fourth proportional to 12,698.48, 17,507.62 and 9,861.04 is: 13,595.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698.48 : 17,507.62 = 9,861.04 : x
  2. Step 2: Convert to fraction form
    12,698.48/17,507.62 = 9,861.04/x
  3. Step 3: Cross multiply
    12,698.48x = 17,507.62 × 9,861.04
  4. Step 4: Simplify right side
    12,698.48x = 172,643,341.12
  5. Step 5: Solve for x
    x = 172,643,341.12/12,698.48
  6. Step 6: Final answer
    x = 13,595.59

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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.