Home / 15,898.12-21,940.40-8,824.66

Finding the Fourth Proportional to 15,898.12, 21,940.40 and 8,824.66

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Solution

The fourth proportional to 15,898.12, 21,940.40 and 8,824.66 is: 12,178.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,898.12 : 21,940.40 = 8,824.66 : x
  2. Step 2: Convert to fraction form
    15,898.12/21,940.40 = 8,824.66/x
  3. Step 3: Cross multiply
    15,898.12x = 21,940.40 × 8,824.66
  4. Step 4: Simplify right side
    15,898.12x = 193,616,570.26
  5. Step 5: Solve for x
    x = 193,616,570.26/15,898.12
  6. Step 6: Final answer
    x = 12,178.58

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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.