Home / 15,238.08-21,032.16-9,267.36

Finding the Fourth Proportional to 15,238.08, 21,032.16 and 9,267.36

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Solution

The fourth proportional to 15,238.08, 21,032.16 and 9,267.36 is: 12,791.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238.08 : 21,032.16 = 9,267.36 : x
  2. Step 2: Convert to fraction form
    15,238.08/21,032.16 = 9,267.36/x
  3. Step 3: Cross multiply
    15,238.08x = 21,032.16 × 9,267.36
  4. Step 4: Simplify right side
    15,238.08x = 194,912,598.30
  5. Step 5: Solve for x
    x = 194,912,598.30/15,238.08
  6. Step 6: Final answer
    x = 12,791.15

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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.