Home / 7,328.70-11,005.20-4,874.40

Finding the Fourth Proportional to 7,328.70, 11,005.20 and 4,874.40

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Solution

The fourth proportional to 7,328.70, 11,005.20 and 4,874.40 is: 7,319.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.70 : 11,005.20 = 4,874.40 : x
  2. Step 2: Convert to fraction form
    7,328.70/11,005.20 = 4,874.40/x
  3. Step 3: Cross multiply
    7,328.70x = 11,005.20 × 4,874.40
  4. Step 4: Simplify right side
    7,328.70x = 53,643,746.88
  5. Step 5: Solve for x
    x = 53,643,746.88/7,328.70
  6. Step 6: Final answer
    x = 7,319.68

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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.