Home / 13,655.07-18,834.17-9,630.18

Finding the Fourth Proportional to 13,655.07, 18,834.17 and 9,630.18

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Solution

The fourth proportional to 13,655.07, 18,834.17 and 9,630.18 is: 13,282.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.07 : 18,834.17 = 9,630.18 : x
  2. Step 2: Convert to fraction form
    13,655.07/18,834.17 = 9,630.18/x
  3. Step 3: Cross multiply
    13,655.07x = 18,834.17 × 9,630.18
  4. Step 4: Simplify right side
    13,655.07x = 181,376,399.10
  5. Step 5: Solve for x
    x = 181,376,399.10/13,655.07
  6. Step 6: Final answer
    x = 13,282.71

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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.