Home / 8,928.19-12,320.91-4,949.35

Finding the Fourth Proportional to 8,928.19, 12,320.91 and 4,949.35

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Solution

The fourth proportional to 8,928.19, 12,320.91 and 4,949.35 is: 6,830.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.19 : 12,320.91 = 4,949.35 : x
  2. Step 2: Convert to fraction form
    8,928.19/12,320.91 = 4,949.35/x
  3. Step 3: Cross multiply
    8,928.19x = 12,320.91 × 4,949.35
  4. Step 4: Simplify right side
    8,928.19x = 60,980,495.91
  5. Step 5: Solve for x
    x = 60,980,495.91/8,928.19
  6. Step 6: Final answer
    x = 6,830.11

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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.