Home / 18,628.05-25,706.33-10,130.34

Finding the Fourth Proportional to 18,628.05, 25,706.33 and 10,130.34

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Solution

The fourth proportional to 18,628.05, 25,706.33 and 10,130.34 is: 13,979.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.05 : 25,706.33 = 10,130.34 : x
  2. Step 2: Convert to fraction form
    18,628.05/25,706.33 = 10,130.34/x
  3. Step 3: Cross multiply
    18,628.05x = 25,706.33 × 10,130.34
  4. Step 4: Simplify right side
    18,628.05x = 260,413,863.05
  5. Step 5: Solve for x
    x = 260,413,863.05/18,628.05
  6. Step 6: Final answer
    x = 13,979.66

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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.