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Finding the Fourth Proportional to 9,216, 13,798.80 and 6,445.44

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Solution

The fourth proportional to 9,216, 13,798.80 and 6,445.44 is: 9,650.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,216 : 13,798.80 = 6,445.44 : x
  2. Step 2: Convert to fraction form
    9,216/13,798.80 = 6,445.44/x
  3. Step 3: Cross multiply
    9,216x = 13,798.80 × 6,445.44
  4. Step 4: Simplify right side
    9,216x = 88,939,337.47
  5. Step 5: Solve for x
    x = 88,939,337.47/9,216
  6. Step 6: Final answer
    x = 9,650.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.