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Finding the Fourth Proportional to 8,678.00, 13,011.53 and 7,362.21

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Solution

The fourth proportional to 8,678.00, 13,011.53 and 7,362.21 is: 11,038.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.00 : 13,011.53 = 7,362.21 : x
  2. Step 2: Convert to fraction form
    8,678.00/13,011.53 = 7,362.21/x
  3. Step 3: Cross multiply
    8,678.00x = 13,011.53 × 7,362.21
  4. Step 4: Simplify right side
    8,678.00x = 95,793,597.88
  5. Step 5: Solve for x
    x = 95,793,597.88/8,678.00
  6. Step 6: Final answer
    x = 11,038.68

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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.