Home / 15,704.12-21,666.12-8,984.84

Finding the Fourth Proportional to 15,704.12, 21,666.12 and 8,984.84

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Solution

The fourth proportional to 15,704.12, 21,666.12 and 8,984.84 is: 12,395.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,704.12 : 21,666.12 = 8,984.84 : x
  2. Step 2: Convert to fraction form
    15,704.12/21,666.12 = 8,984.84/x
  3. Step 3: Cross multiply
    15,704.12x = 21,666.12 × 8,984.84
  4. Step 4: Simplify right side
    15,704.12x = 194,666,621.62
  5. Step 5: Solve for x
    x = 194,666,621.62/15,704.12
  6. Step 6: Final answer
    x = 12,395.89

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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.