Home / 13,527.11-18,637.71-10,109.81

Finding the Fourth Proportional to 13,527.11, 18,637.71 and 10,109.81

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Solution

The fourth proportional to 13,527.11, 18,637.71 and 10,109.81 is: 13,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,527.11 : 18,637.71 = 10,109.81 : x
  2. Step 2: Convert to fraction form
    13,527.11/18,637.71 = 10,109.81/x
  3. Step 3: Cross multiply
    13,527.11x = 18,637.71 × 10,109.81
  4. Step 4: Simplify right side
    13,527.11x = 188,423,706.94
  5. Step 5: Solve for x
    x = 188,423,706.94/13,527.11
  6. Step 6: Final answer
    x = 13,929.34

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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.