Home / 7,409.52-10,220.04-5,284.80

Finding the Fourth Proportional to 7,409.52, 10,220.04 and 5,284.80

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Solution

The fourth proportional to 7,409.52, 10,220.04 and 5,284.80 is: 7,289.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.52 : 10,220.04 = 5,284.80 : x
  2. Step 2: Convert to fraction form
    7,409.52/10,220.04 = 5,284.80/x
  3. Step 3: Cross multiply
    7,409.52x = 10,220.04 × 5,284.80
  4. Step 4: Simplify right side
    7,409.52x = 54,010,867.39
  5. Step 5: Solve for x
    x = 54,010,867.39/7,409.52
  6. Step 6: Final answer
    x = 7,289.39

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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.