Home / 8,949.36-12,349.84-4,970.32

Finding the Fourth Proportional to 8,949.36, 12,349.84 and 4,970.32

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Solution

The fourth proportional to 8,949.36, 12,349.84 and 4,970.32 is: 6,858.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.36 : 12,349.84 = 4,970.32 : x
  2. Step 2: Convert to fraction form
    8,949.36/12,349.84 = 4,970.32/x
  3. Step 3: Cross multiply
    8,949.36x = 12,349.84 × 4,970.32
  4. Step 4: Simplify right side
    8,949.36x = 61,382,656.75
  5. Step 5: Solve for x
    x = 61,382,656.75/8,949.36
  6. Step 6: Final answer
    x = 6,858.89

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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.