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Finding the Fourth Proportional to 8,289.00, 12,421.84 and 7,051.52

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Solution

The fourth proportional to 8,289.00, 12,421.84 and 7,051.52 is: 10,567.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.00 : 12,421.84 = 7,051.52 : x
  2. Step 2: Convert to fraction form
    8,289.00/12,421.84 = 7,051.52/x
  3. Step 3: Cross multiply
    8,289.00x = 12,421.84 × 7,051.52
  4. Step 4: Simplify right side
    8,289.00x = 87,592,808.72
  5. Step 5: Solve for x
    x = 87,592,808.72/8,289.00
  6. Step 6: Final answer
    x = 10,567.36

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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.