Home / 9,508.40-13,121.40-5,783.60

Finding the Fourth Proportional to 9,508.40, 13,121.40 and 5,783.60

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Solution

The fourth proportional to 9,508.40, 13,121.40 and 5,783.60 is: 7,981.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,508.40 : 13,121.40 = 5,783.60 : x
  2. Step 2: Convert to fraction form
    9,508.40/13,121.40 = 5,783.60/x
  3. Step 3: Cross multiply
    9,508.40x = 13,121.40 × 5,783.60
  4. Step 4: Simplify right side
    9,508.40x = 75,888,929.04
  5. Step 5: Solve for x
    x = 75,888,929.04/9,508.40
  6. Step 6: Final answer
    x = 7,981.25

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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.