Home / 11,985.70-17,984.12-4,587.72

Finding the Fourth Proportional to 11,985.70, 17,984.12 and 4,587.72

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Solution

The fourth proportional to 11,985.70, 17,984.12 and 4,587.72 is: 6,883.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.70 : 17,984.12 = 4,587.72 : x
  2. Step 2: Convert to fraction form
    11,985.70/17,984.12 = 4,587.72/x
  3. Step 3: Cross multiply
    11,985.70x = 17,984.12 × 4,587.72
  4. Step 4: Simplify right side
    11,985.70x = 82,506,107.01
  5. Step 5: Solve for x
    x = 82,506,107.01/11,985.70
  6. Step 6: Final answer
    x = 6,883.71

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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.