Home / 15,562.99-21,476.05-8,847.69

Finding the Fourth Proportional to 15,562.99, 21,476.05 and 8,847.69

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Solution

The fourth proportional to 15,562.99, 21,476.05 and 8,847.69 is: 12,209.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,562.99 : 21,476.05 = 8,847.69 : x
  2. Step 2: Convert to fraction form
    15,562.99/21,476.05 = 8,847.69/x
  3. Step 3: Cross multiply
    15,562.99x = 21,476.05 × 8,847.69
  4. Step 4: Simplify right side
    15,562.99x = 190,013,432.82
  5. Step 5: Solve for x
    x = 190,013,432.82/15,562.99
  6. Step 6: Final answer
    x = 12,209.31

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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.