Home / 18,345.32-25,316.04-10,388.28

Finding the Fourth Proportional to 18,345.32, 25,316.04 and 10,388.28

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Solution

The fourth proportional to 18,345.32, 25,316.04 and 10,388.28 is: 14,335.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345.32 : 25,316.04 = 10,388.28 : x
  2. Step 2: Convert to fraction form
    18,345.32/25,316.04 = 10,388.28/x
  3. Step 3: Cross multiply
    18,345.32x = 25,316.04 × 10,388.28
  4. Step 4: Simplify right side
    18,345.32x = 262,990,112.01
  5. Step 5: Solve for x
    x = 262,990,112.01/18,345.32
  6. Step 6: Final answer
    x = 14,335.54

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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.