Home / 11,539.83-15,921.45-7,058.91

Finding the Fourth Proportional to 11,539.83, 15,921.45 and 7,058.91

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Solution

The fourth proportional to 11,539.83, 15,921.45 and 7,058.91 is: 9,739.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,539.83 : 15,921.45 = 7,058.91 : x
  2. Step 2: Convert to fraction form
    11,539.83/15,921.45 = 7,058.91/x
  3. Step 3: Cross multiply
    11,539.83x = 15,921.45 × 7,058.91
  4. Step 4: Simplify right side
    11,539.83x = 112,388,082.62
  5. Step 5: Solve for x
    x = 112,388,082.62/11,539.83
  6. Step 6: Final answer
    x = 9,739.15

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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.