Home / 8,888.16-12,261.60-5,160

Finding the Fourth Proportional to 8,888.16, 12,261.60 and 5,160

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Solution

The fourth proportional to 8,888.16, 12,261.60 and 5,160 is: 7,118.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.16 : 12,261.60 = 5,160 : x
  2. Step 2: Convert to fraction form
    8,888.16/12,261.60 = 5,160/x
  3. Step 3: Cross multiply
    8,888.16x = 12,261.60 × 5,160
  4. Step 4: Simplify right side
    8,888.16x = 63,269,856
  5. Step 5: Solve for x
    x = 63,269,856/8,888.16
  6. Step 6: Final answer
    x = 7,118.44

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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.