Home / 19,488.59-26,903.25-11,421.13

Finding the Fourth Proportional to 19,488.59, 26,903.25 and 11,421.13

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Solution

The fourth proportional to 19,488.59, 26,903.25 and 11,421.13 is: 15,766.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,488.59 : 26,903.25 = 11,421.13 : x
  2. Step 2: Convert to fraction form
    19,488.59/26,903.25 = 11,421.13/x
  3. Step 3: Cross multiply
    19,488.59x = 26,903.25 × 11,421.13
  4. Step 4: Simplify right side
    19,488.59x = 307,265,515.67
  5. Step 5: Solve for x
    x = 307,265,515.67/19,488.59
  6. Step 6: Final answer
    x = 15,766.43

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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.