Home / 18,345.24-25,316.34-10,388.19

Finding the Fourth Proportional to 18,345.24, 25,316.34 and 10,388.19

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Solution

The fourth proportional to 18,345.24, 25,316.34 and 10,388.19 is: 14,335.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345.24 : 25,316.34 = 10,388.19 : x
  2. Step 2: Convert to fraction form
    18,345.24/25,316.34 = 10,388.19/x
  3. Step 3: Cross multiply
    18,345.24x = 25,316.34 × 10,388.19
  4. Step 4: Simplify right side
    18,345.24x = 262,990,950.02
  5. Step 5: Solve for x
    x = 262,990,950.02/18,345.24
  6. Step 6: Final answer
    x = 14,335.65

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Double scale
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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.