Home / 13,915.28-19,203.28-7,627.24

Finding the Fourth Proportional to 13,915.28, 19,203.28 and 7,627.24

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Solution

The fourth proportional to 13,915.28, 19,203.28 and 7,627.24 is: 10,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.28 : 19,203.28 = 7,627.24 : x
  2. Step 2: Convert to fraction form
    13,915.28/19,203.28 = 7,627.24/x
  3. Step 3: Cross multiply
    13,915.28x = 19,203.28 × 7,627.24
  4. Step 4: Simplify right side
    13,915.28x = 146,468,025.35
  5. Step 5: Solve for x
    x = 146,468,025.35/13,915.28
  6. Step 6: Final answer
    x = 10,525.70

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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.