Home / 11,368.32-15,684.12-6,888.84

Finding the Fourth Proportional to 11,368.32, 15,684.12 and 6,888.84

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Solution

The fourth proportional to 11,368.32, 15,684.12 and 6,888.84 is: 9,504.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,368.32 : 15,684.12 = 6,888.84 : x
  2. Step 2: Convert to fraction form
    11,368.32/15,684.12 = 6,888.84/x
  3. Step 3: Cross multiply
    11,368.32x = 15,684.12 × 6,888.84
  4. Step 4: Simplify right side
    11,368.32x = 108,045,393.22
  5. Step 5: Solve for x
    x = 108,045,393.22/11,368.32
  6. Step 6: Final answer
    x = 9,504.08

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Half scale
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Double scale
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Similar ratio
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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.