Home / 13,647.64-20,476.47-5,752.15

Finding the Fourth Proportional to 13,647.64, 20,476.47 and 5,752.15

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Solution

The fourth proportional to 13,647.64, 20,476.47 and 5,752.15 is: 8,630.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.64 : 20,476.47 = 5,752.15 : x
  2. Step 2: Convert to fraction form
    13,647.64/20,476.47 = 5,752.15/x
  3. Step 3: Cross multiply
    13,647.64x = 20,476.47 × 5,752.15
  4. Step 4: Simplify right side
    13,647.64x = 117,783,726.91
  5. Step 5: Solve for x
    x = 117,783,726.91/13,647.64
  6. Step 6: Final answer
    x = 8,630.34

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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.