Home / 18,489.54-25,515.93-10,106.34

Finding the Fourth Proportional to 18,489.54, 25,515.93 and 10,106.34

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Solution

The fourth proportional to 18,489.54, 25,515.93 and 10,106.34 is: 13,946.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489.54 : 25,515.93 = 10,106.34 : x
  2. Step 2: Convert to fraction form
    18,489.54/25,515.93 = 10,106.34/x
  3. Step 3: Cross multiply
    18,489.54x = 25,515.93 × 10,106.34
  4. Step 4: Simplify right side
    18,489.54x = 257,872,664.00
  5. Step 5: Solve for x
    x = 257,872,664.00/18,489.54
  6. Step 6: Final answer
    x = 13,946.95

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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.