Home / 15,289.68-21,098.82-8,574.82

Finding the Fourth Proportional to 15,289.68, 21,098.82 and 8,574.82

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Solution

The fourth proportional to 15,289.68, 21,098.82 and 8,574.82 is: 11,832.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289.68 : 21,098.82 = 8,574.82 : x
  2. Step 2: Convert to fraction form
    15,289.68/21,098.82 = 8,574.82/x
  3. Step 3: Cross multiply
    15,289.68x = 21,098.82 × 8,574.82
  4. Step 4: Simplify right side
    15,289.68x = 180,918,583.71
  5. Step 5: Solve for x
    x = 180,918,583.71/15,289.68
  6. Step 6: Final answer
    x = 11,832.73

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1.5x scale

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.