Home / 9,320.80-13,997.40-4,946.80

Finding the Fourth Proportional to 9,320.80, 13,997.40 and 4,946.80

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Solution

The fourth proportional to 9,320.80, 13,997.40 and 4,946.80 is: 7,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.80 : 13,997.40 = 4,946.80 : x
  2. Step 2: Convert to fraction form
    9,320.80/13,997.40 = 4,946.80/x
  3. Step 3: Cross multiply
    9,320.80x = 13,997.40 × 4,946.80
  4. Step 4: Simplify right side
    9,320.80x = 69,242,338.32
  5. Step 5: Solve for x
    x = 69,242,338.32/9,320.80
  6. Step 6: Final answer
    x = 7,428.80

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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.