Home / 8,910-12,296.08-4,931.52

Finding the Fourth Proportional to 8,910, 12,296.08 and 4,931.52

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Solution

The fourth proportional to 8,910, 12,296.08 and 4,931.52 is: 6,805.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910 : 12,296.08 = 4,931.52 : x
  2. Step 2: Convert to fraction form
    8,910/12,296.08 = 4,931.52/x
  3. Step 3: Cross multiply
    8,910x = 12,296.08 × 4,931.52
  4. Step 4: Simplify right side
    8,910x = 60,638,364.44
  5. Step 5: Solve for x
    x = 60,638,364.44/8,910
  6. Step 6: Final answer
    x = 6,805.65

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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.