Home / 12,860.40-17,726.80-10,498.48

Finding the Fourth Proportional to 12,860.40, 17,726.80 and 10,498.48

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Solution

The fourth proportional to 12,860.40, 17,726.80 and 10,498.48 is: 14,471.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.40 : 17,726.80 = 10,498.48 : x
  2. Step 2: Convert to fraction form
    12,860.40/17,726.80 = 10,498.48/x
  3. Step 3: Cross multiply
    12,860.40x = 17,726.80 × 10,498.48
  4. Step 4: Simplify right side
    12,860.40x = 186,104,455.26
  5. Step 5: Solve for x
    x = 186,104,455.26/12,860.40
  6. Step 6: Final answer
    x = 14,471.12

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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.