Home / 15,272.24-21,075.92-8,557.84

Finding the Fourth Proportional to 15,272.24, 21,075.92 and 8,557.84

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Solution

The fourth proportional to 15,272.24, 21,075.92 and 8,557.84 is: 11,809.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272.24 : 21,075.92 = 8,557.84 : x
  2. Step 2: Convert to fraction form
    15,272.24/21,075.92 = 8,557.84/x
  3. Step 3: Cross multiply
    15,272.24x = 21,075.92 × 8,557.84
  4. Step 4: Simplify right side
    15,272.24x = 180,364,351.21
  5. Step 5: Solve for x
    x = 180,364,351.21/15,272.24
  6. Step 6: Final answer
    x = 11,809.95

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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.