Home / 18,641.48-25,728.42-11,088.20

Finding the Fourth Proportional to 18,641.48, 25,728.42 and 11,088.20

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Solution

The fourth proportional to 18,641.48, 25,728.42 and 11,088.20 is: 15,303.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.48 : 25,728.42 = 11,088.20 : x
  2. Step 2: Convert to fraction form
    18,641.48/25,728.42 = 11,088.20/x
  3. Step 3: Cross multiply
    18,641.48x = 25,728.42 × 11,088.20
  4. Step 4: Simplify right side
    18,641.48x = 285,281,866.64
  5. Step 5: Solve for x
    x = 285,281,866.64/18,641.48
  6. Step 6: Final answer
    x = 15,303.61

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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.