Home / 7,943.80-11,904.90-5,303.80

Finding the Fourth Proportional to 7,943.80, 11,904.90 and 5,303.80

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Solution

The fourth proportional to 7,943.80, 11,904.90 and 5,303.80 is: 7,948.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.80 : 11,904.90 = 5,303.80 : x
  2. Step 2: Convert to fraction form
    7,943.80/11,904.90 = 5,303.80/x
  3. Step 3: Cross multiply
    7,943.80x = 11,904.90 × 5,303.80
  4. Step 4: Simplify right side
    7,943.80x = 63,141,208.62
  5. Step 5: Solve for x
    x = 63,141,208.62/7,943.80
  6. Step 6: Final answer
    x = 7,948.49

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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.