Home / 18,628.17-25,706.97-10,130.35

Finding the Fourth Proportional to 18,628.17, 25,706.97 and 10,130.35

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Solution

The fourth proportional to 18,628.17, 25,706.97 and 10,130.35 is: 13,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.17 : 25,706.97 = 10,130.35 : x
  2. Step 2: Convert to fraction form
    18,628.17/25,706.97 = 10,130.35/x
  3. Step 3: Cross multiply
    18,628.17x = 25,706.97 × 10,130.35
  4. Step 4: Simplify right side
    18,628.17x = 260,420,603.54
  5. Step 5: Solve for x
    x = 260,420,603.54/18,628.17
  6. Step 6: Final answer
    x = 13,979.93

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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.