Home / 8,520.27-12,782.53-2,973.69

Finding the Fourth Proportional to 8,520.27, 12,782.53 and 2,973.69

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Solution

The fourth proportional to 8,520.27, 12,782.53 and 2,973.69 is: 4,461.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.27 : 12,782.53 = 2,973.69 : x
  2. Step 2: Convert to fraction form
    8,520.27/12,782.53 = 2,973.69/x
  3. Step 3: Cross multiply
    8,520.27x = 12,782.53 × 2,973.69
  4. Step 4: Simplify right side
    8,520.27x = 38,011,281.64
  5. Step 5: Solve for x
    x = 38,011,281.64/8,520.27
  6. Step 6: Final answer
    x = 4,461.28

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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.