Home / 19,088.13-26,317.40-13,643.72

Finding the Fourth Proportional to 19,088.13, 26,317.40 and 13,643.72

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Solution

The fourth proportional to 19,088.13, 26,317.40 and 13,643.72 is: 18,811.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,088.13 : 26,317.40 = 13,643.72 : x
  2. Step 2: Convert to fraction form
    19,088.13/26,317.40 = 13,643.72/x
  3. Step 3: Cross multiply
    19,088.13x = 26,317.40 × 13,643.72
  4. Step 4: Simplify right side
    19,088.13x = 359,067,236.73
  5. Step 5: Solve for x
    x = 359,067,236.73/19,088.13
  6. Step 6: Final answer
    x = 18,811.02

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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.