Home / 18,706.47-25,815.08-10,208.66

Finding the Fourth Proportional to 18,706.47, 25,815.08 and 10,208.66

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Solution

The fourth proportional to 18,706.47, 25,815.08 and 10,208.66 is: 14,088.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,706.47 : 25,815.08 = 10,208.66 : x
  2. Step 2: Convert to fraction form
    18,706.47/25,815.08 = 10,208.66/x
  3. Step 3: Cross multiply
    18,706.47x = 25,815.08 × 10,208.66
  4. Step 4: Simplify right side
    18,706.47x = 263,537,329.56
  5. Step 5: Solve for x
    x = 263,537,329.56/18,706.47
  6. Step 6: Final answer
    x = 14,088.03

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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.