Home / 15,272.25-21,075.67-9,303.91

Finding the Fourth Proportional to 15,272.25, 21,075.67 and 9,303.91

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Solution

The fourth proportional to 15,272.25, 21,075.67 and 9,303.91 is: 12,839.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272.25 : 21,075.67 = 9,303.91 : x
  2. Step 2: Convert to fraction form
    15,272.25/21,075.67 = 9,303.91/x
  3. Step 3: Cross multiply
    15,272.25x = 21,075.67 × 9,303.91
  4. Step 4: Simplify right side
    15,272.25x = 196,086,215.90
  5. Step 5: Solve for x
    x = 196,086,215.90/15,272.25
  6. Step 6: Final answer
    x = 12,839.38

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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.