Home / 15,556.80-21,468.24-9,586.08

Finding the Fourth Proportional to 15,556.80, 21,468.24 and 9,586.08

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Solution

The fourth proportional to 15,556.80, 21,468.24 and 9,586.08 is: 13,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.80 : 21,468.24 = 9,586.08 : x
  2. Step 2: Convert to fraction form
    15,556.80/21,468.24 = 9,586.08/x
  3. Step 3: Cross multiply
    15,556.80x = 21,468.24 × 9,586.08
  4. Step 4: Simplify right side
    15,556.80x = 205,796,266.10
  5. Step 5: Solve for x
    x = 205,796,266.10/15,556.80
  6. Step 6: Final answer
    x = 13,228.70

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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.