Home / 13,635.29-18,812.18-11,113.07

Finding the Fourth Proportional to 13,635.29, 18,812.18 and 11,113.07

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Solution

The fourth proportional to 13,635.29, 18,812.18 and 11,113.07 is: 15,332.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.29 : 18,812.18 = 11,113.07 : x
  2. Step 2: Convert to fraction form
    13,635.29/18,812.18 = 11,113.07/x
  3. Step 3: Cross multiply
    13,635.29x = 18,812.18 × 11,113.07
  4. Step 4: Simplify right side
    13,635.29x = 209,061,073.19
  5. Step 5: Solve for x
    x = 209,061,073.19/13,635.29
  6. Step 6: Final answer
    x = 15,332.35

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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.