Home / 19,405.35-26,789.58-13,065.28

Finding the Fourth Proportional to 19,405.35, 26,789.58 and 13,065.28

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Solution

The fourth proportional to 19,405.35, 26,789.58 and 13,065.28 is: 18,036.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.35 : 26,789.58 = 13,065.28 : x
  2. Step 2: Convert to fraction form
    19,405.35/26,789.58 = 13,065.28/x
  3. Step 3: Cross multiply
    19,405.35x = 26,789.58 × 13,065.28
  4. Step 4: Simplify right side
    19,405.35x = 350,013,296.81
  5. Step 5: Solve for x
    x = 350,013,296.81/19,405.35
  6. Step 6: Final answer
    x = 18,036.95

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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.