Home / 15,353.13-21,181.26-11,329.71

Finding the Fourth Proportional to 15,353.13, 21,181.26 and 11,329.71

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Solution

The fourth proportional to 15,353.13, 21,181.26 and 11,329.71 is: 15,630.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,353.13 : 21,181.26 = 11,329.71 : x
  2. Step 2: Convert to fraction form
    15,353.13/21,181.26 = 11,329.71/x
  3. Step 3: Cross multiply
    15,353.13x = 21,181.26 × 11,329.71
  4. Step 4: Simplify right side
    15,353.13x = 239,977,533.23
  5. Step 5: Solve for x
    x = 239,977,533.23/15,353.13
  6. Step 6: Final answer
    x = 15,630.53

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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.