Home / 18,438.54-25,444.86-10,055.04

Finding the Fourth Proportional to 18,438.54, 25,444.86 and 10,055.04

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Solution

The fourth proportional to 18,438.54, 25,444.86 and 10,055.04 is: 13,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.54 : 25,444.86 = 10,055.04 : x
  2. Step 2: Convert to fraction form
    18,438.54/25,444.86 = 10,055.04/x
  3. Step 3: Cross multiply
    18,438.54x = 25,444.86 × 10,055.04
  4. Step 4: Simplify right side
    18,438.54x = 255,849,085.09
  5. Step 5: Solve for x
    x = 255,849,085.09/18,438.54
  6. Step 6: Final answer
    x = 13,875.78

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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.