Home / 18,235.16-25,164.96-10,686.32

Finding the Fourth Proportional to 18,235.16, 25,164.96 and 10,686.32

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Solution

The fourth proportional to 18,235.16, 25,164.96 and 10,686.32 is: 14,747.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.16 : 25,164.96 = 10,686.32 : x
  2. Step 2: Convert to fraction form
    18,235.16/25,164.96 = 10,686.32/x
  3. Step 3: Cross multiply
    18,235.16x = 25,164.96 × 10,686.32
  4. Step 4: Simplify right side
    18,235.16x = 268,920,815.35
  5. Step 5: Solve for x
    x = 268,920,815.35/18,235.16
  6. Step 6: Final answer
    x = 14,747.38

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Half scale
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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.