Home / 15,357.11-21,192.57-8,551.08

Finding the Fourth Proportional to 15,357.11, 21,192.57 and 8,551.08

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Solution

The fourth proportional to 15,357.11, 21,192.57 and 8,551.08 is: 11,800.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,357.11 : 21,192.57 = 8,551.08 : x
  2. Step 2: Convert to fraction form
    15,357.11/21,192.57 = 8,551.08/x
  3. Step 3: Cross multiply
    15,357.11x = 21,192.57 × 8,551.08
  4. Step 4: Simplify right side
    15,357.11x = 181,219,361.48
  5. Step 5: Solve for x
    x = 181,219,361.48/15,357.11
  6. Step 6: Final answer
    x = 11,800.36

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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.