Home / 15,433.47-21,299.76-11,130.09

Finding the Fourth Proportional to 15,433.47, 21,299.76 and 11,130.09

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Solution

The fourth proportional to 15,433.47, 21,299.76 and 11,130.09 is: 15,360.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,433.47 : 21,299.76 = 11,130.09 : x
  2. Step 2: Convert to fraction form
    15,433.47/21,299.76 = 11,130.09/x
  3. Step 3: Cross multiply
    15,433.47x = 21,299.76 × 11,130.09
  4. Step 4: Simplify right side
    15,433.47x = 237,068,245.78
  5. Step 5: Solve for x
    x = 237,068,245.78/15,433.47
  6. Step 6: Final answer
    x = 15,360.66

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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.