Home / 18,518.94-25,555.95-10,020.87

Finding the Fourth Proportional to 18,518.94, 25,555.95 and 10,020.87

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Solution

The fourth proportional to 18,518.94, 25,555.95 and 10,020.87 is: 13,828.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.94 : 25,555.95 = 10,020.87 : x
  2. Step 2: Convert to fraction form
    18,518.94/25,555.95 = 10,020.87/x
  3. Step 3: Cross multiply
    18,518.94x = 25,555.95 × 10,020.87
  4. Step 4: Simplify right side
    18,518.94x = 256,092,852.68
  5. Step 5: Solve for x
    x = 256,092,852.68/18,518.94
  6. Step 6: Final answer
    x = 13,828.70

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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.