Home / 9,315.48-12,849.60-6,658.28

Finding the Fourth Proportional to 9,315.48, 12,849.60 and 6,658.28

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Solution

The fourth proportional to 9,315.48, 12,849.60 and 6,658.28 is: 9,184.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.48 : 12,849.60 = 6,658.28 : x
  2. Step 2: Convert to fraction form
    9,315.48/12,849.60 = 6,658.28/x
  3. Step 3: Cross multiply
    9,315.48x = 12,849.60 × 6,658.28
  4. Step 4: Simplify right side
    9,315.48x = 85,556,234.69
  5. Step 5: Solve for x
    x = 85,556,234.69/9,315.48
  6. Step 6: Final answer
    x = 9,184.31

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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.