Home / 15,735.13-21,711.72-9,447.64

Finding the Fourth Proportional to 15,735.13, 21,711.72 and 9,447.64

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Solution

The fourth proportional to 15,735.13, 21,711.72 and 9,447.64 is: 13,036.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,735.13 : 21,711.72 = 9,447.64 : x
  2. Step 2: Convert to fraction form
    15,735.13/21,711.72 = 9,447.64/x
  3. Step 3: Cross multiply
    15,735.13x = 21,711.72 × 9,447.64
  4. Step 4: Simplify right side
    15,735.13x = 205,124,514.34
  5. Step 5: Solve for x
    x = 205,124,514.34/15,735.13
  6. Step 6: Final answer
    x = 13,036.09

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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.