Home / 15,270.94-21,075.14-8,984.53

Finding the Fourth Proportional to 15,270.94, 21,075.14 and 8,984.53

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Solution

The fourth proportional to 15,270.94, 21,075.14 and 8,984.53 is: 12,399.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,270.94 : 21,075.14 = 8,984.53 : x
  2. Step 2: Convert to fraction form
    15,270.94/21,075.14 = 8,984.53/x
  3. Step 3: Cross multiply
    15,270.94x = 21,075.14 × 8,984.53
  4. Step 4: Simplify right side
    15,270.94x = 189,350,197.36
  5. Step 5: Solve for x
    x = 189,350,197.36/15,270.94
  6. Step 6: Final answer
    x = 12,399.38

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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.