Home / 15,554.80-21,456.08-9,956.08

Finding the Fourth Proportional to 15,554.80, 21,456.08 and 9,956.08

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Solution

The fourth proportional to 15,554.80, 21,456.08 and 9,956.08 is: 13,733.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.80 : 21,456.08 = 9,956.08 : x
  2. Step 2: Convert to fraction form
    15,554.80/21,456.08 = 9,956.08/x
  3. Step 3: Cross multiply
    15,554.80x = 21,456.08 × 9,956.08
  4. Step 4: Simplify right side
    15,554.80x = 213,618,448.97
  5. Step 5: Solve for x
    x = 213,618,448.97/15,554.80
  6. Step 6: Final answer
    x = 13,733.28

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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.