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Finding the Fourth Proportional to 9,045.42, 13,479.30 and 8,748.12

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Solution

The fourth proportional to 9,045.42, 13,479.30 and 8,748.12 is: 13,036.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,045.42 : 13,479.30 = 8,748.12 : x
  2. Step 2: Convert to fraction form
    9,045.42/13,479.30 = 8,748.12/x
  3. Step 3: Cross multiply
    9,045.42x = 13,479.30 × 8,748.12
  4. Step 4: Simplify right side
    9,045.42x = 117,918,533.92
  5. Step 5: Solve for x
    x = 117,918,533.92/9,045.42
  6. Step 6: Final answer
    x = 13,036.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.