Home / 7,470.20-11,205.30-6,303.80

Finding the Fourth Proportional to 7,470.20, 11,205.30 and 6,303.80

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Solution

The fourth proportional to 7,470.20, 11,205.30 and 6,303.80 is: 9,455.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.20 : 11,205.30 = 6,303.80 : x
  2. Step 2: Convert to fraction form
    7,470.20/11,205.30 = 6,303.80/x
  3. Step 3: Cross multiply
    7,470.20x = 11,205.30 × 6,303.80
  4. Step 4: Simplify right side
    7,470.20x = 70,635,970.14
  5. Step 5: Solve for x
    x = 70,635,970.14/7,470.20
  6. Step 6: Final answer
    x = 9,455.70

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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.