Home / 15,650.40-21,556.08-11,658.72

Finding the Fourth Proportional to 15,650.40, 21,556.08 and 11,658.72

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Solution

The fourth proportional to 15,650.40, 21,556.08 and 11,658.72 is: 16,058.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,650.40 : 21,556.08 = 11,658.72 : x
  2. Step 2: Convert to fraction form
    15,650.40/21,556.08 = 11,658.72/x
  3. Step 3: Cross multiply
    15,650.40x = 21,556.08 × 11,658.72
  4. Step 4: Simplify right side
    15,650.40x = 251,316,301.02
  5. Step 5: Solve for x
    x = 251,316,301.02/15,650.40
  6. Step 6: Final answer
    x = 16,058.14

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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.