Home / 12,875.12-19,326.36-11,403.92

Finding the Fourth Proportional to 12,875.12, 19,326.36 and 11,403.92

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Solution

The fourth proportional to 12,875.12, 19,326.36 and 11,403.92 is: 17,118.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875.12 : 19,326.36 = 11,403.92 : x
  2. Step 2: Convert to fraction form
    12,875.12/19,326.36 = 11,403.92/x
  3. Step 3: Cross multiply
    12,875.12x = 19,326.36 × 11,403.92
  4. Step 4: Simplify right side
    12,875.12x = 220,396,263.33
  5. Step 5: Solve for x
    x = 220,396,263.33/12,875.12
  6. Step 6: Final answer
    x = 17,118.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.