Home / 9,354.48-12,909.21-5,105.58

Finding the Fourth Proportional to 9,354.48, 12,909.21 and 5,105.58

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Solution

The fourth proportional to 9,354.48, 12,909.21 and 5,105.58 is: 7,045.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,354.48 : 12,909.21 = 5,105.58 : x
  2. Step 2: Convert to fraction form
    9,354.48/12,909.21 = 5,105.58/x
  3. Step 3: Cross multiply
    9,354.48x = 12,909.21 × 5,105.58
  4. Step 4: Simplify right side
    9,354.48x = 65,909,004.39
  5. Step 5: Solve for x
    x = 65,909,004.39/9,354.48
  6. Step 6: Final answer
    x = 7,045.72

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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.