Home / 15,749.30-21,762.99-11,493.15

Finding the Fourth Proportional to 15,749.30, 21,762.99 and 11,493.15

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Solution

The fourth proportional to 15,749.30, 21,762.99 and 11,493.15 is: 15,881.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,749.30 : 21,762.99 = 11,493.15 : x
  2. Step 2: Convert to fraction form
    15,749.30/21,762.99 = 11,493.15/x
  3. Step 3: Cross multiply
    15,749.30x = 21,762.99 × 11,493.15
  4. Step 4: Simplify right side
    15,749.30x = 250,125,308.52
  5. Step 5: Solve for x
    x = 250,125,308.52/15,749.30
  6. Step 6: Final answer
    x = 15,881.68

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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.