Home / 10,188.52-15,283.74-3,615.40

Finding the Fourth Proportional to 10,188.52, 15,283.74 and 3,615.40

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Solution

The fourth proportional to 10,188.52, 15,283.74 and 3,615.40 is: 5,423.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,188.52 : 15,283.74 = 3,615.40 : x
  2. Step 2: Convert to fraction form
    10,188.52/15,283.74 = 3,615.40/x
  3. Step 3: Cross multiply
    10,188.52x = 15,283.74 × 3,615.40
  4. Step 4: Simplify right side
    10,188.52x = 55,256,833.60
  5. Step 5: Solve for x
    x = 55,256,833.60/10,188.52
  6. Step 6: Final answer
    x = 5,423.44

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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.