Home / 15,075.79-22,607.88-7,172.21

Finding the Fourth Proportional to 15,075.79, 22,607.88 and 7,172.21

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Solution

The fourth proportional to 15,075.79, 22,607.88 and 7,172.21 is: 10,755.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.79 : 22,607.88 = 7,172.21 : x
  2. Step 2: Convert to fraction form
    15,075.79/22,607.88 = 7,172.21/x
  3. Step 3: Cross multiply
    15,075.79x = 22,607.88 × 7,172.21
  4. Step 4: Simplify right side
    15,075.79x = 162,148,553.15
  5. Step 5: Solve for x
    x = 162,148,553.15/15,075.79
  6. Step 6: Final answer
    x = 10,755.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.