Home / 19,315.11-26,655.43-10,817.21

Finding the Fourth Proportional to 19,315.11, 26,655.43 and 10,817.21

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Solution

The fourth proportional to 19,315.11, 26,655.43 and 10,817.21 is: 14,928.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315.11 : 26,655.43 = 10,817.21 : x
  2. Step 2: Convert to fraction form
    19,315.11/26,655.43 = 10,817.21/x
  3. Step 3: Cross multiply
    19,315.11x = 26,655.43 × 10,817.21
  4. Step 4: Simplify right side
    19,315.11x = 288,337,277.72
  5. Step 5: Solve for x
    x = 288,337,277.72/19,315.11
  6. Step 6: Final answer
    x = 14,928.07

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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.