Home / 15,228.03-21,014.76-8,858.39

Finding the Fourth Proportional to 15,228.03, 21,014.76 and 8,858.39

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Solution

The fourth proportional to 15,228.03, 21,014.76 and 8,858.39 is: 12,224.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,228.03 : 21,014.76 = 8,858.39 : x
  2. Step 2: Convert to fraction form
    15,228.03/21,014.76 = 8,858.39/x
  3. Step 3: Cross multiply
    15,228.03x = 21,014.76 × 8,858.39
  4. Step 4: Simplify right side
    15,228.03x = 186,156,895.54
  5. Step 5: Solve for x
    x = 186,156,895.54/15,228.03
  6. Step 6: Final answer
    x = 12,224.62

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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.