Home / 10,500.04-15,728.46-7,584.20

Finding the Fourth Proportional to 10,500.04, 15,728.46 and 7,584.20

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Solution

The fourth proportional to 10,500.04, 15,728.46 and 7,584.20 is: 11,360.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500.04 : 15,728.46 = 7,584.20 : x
  2. Step 2: Convert to fraction form
    10,500.04/15,728.46 = 7,584.20/x
  3. Step 3: Cross multiply
    10,500.04x = 15,728.46 × 7,584.20
  4. Step 4: Simplify right side
    10,500.04x = 119,287,786.33
  5. Step 5: Solve for x
    x = 119,287,786.33/10,500.04
  6. Step 6: Final answer
    x = 11,360.70

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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.