Home / 10,511.08-15,766.64-9,869.56

Finding the Fourth Proportional to 10,511.08, 15,766.64 and 9,869.56

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Solution

The fourth proportional to 10,511.08, 15,766.64 and 9,869.56 is: 14,804.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.08 : 15,766.64 = 9,869.56 : x
  2. Step 2: Convert to fraction form
    10,511.08/15,766.64 = 9,869.56/x
  3. Step 3: Cross multiply
    10,511.08x = 15,766.64 × 9,869.56
  4. Step 4: Simplify right side
    10,511.08x = 155,609,799.48
  5. Step 5: Solve for x
    x = 155,609,799.48/10,511.08
  6. Step 6: Final answer
    x = 14,804.36

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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.