Home / 10,688.52-14,747.80-6,209.68

Finding the Fourth Proportional to 10,688.52, 14,747.80 and 6,209.68

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Solution

The fourth proportional to 10,688.52, 14,747.80 and 6,209.68 is: 8,567.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.52 : 14,747.80 = 6,209.68 : x
  2. Step 2: Convert to fraction form
    10,688.52/14,747.80 = 6,209.68/x
  3. Step 3: Cross multiply
    10,688.52x = 14,747.80 × 6,209.68
  4. Step 4: Simplify right side
    10,688.52x = 91,579,118.70
  5. Step 5: Solve for x
    x = 91,579,118.70/10,688.52
  6. Step 6: Final answer
    x = 8,567.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.