Home / 14,648.90-20,215.05-8,275.79

Finding the Fourth Proportional to 14,648.90, 20,215.05 and 8,275.79

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Solution

The fourth proportional to 14,648.90, 20,215.05 and 8,275.79 is: 11,420.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,648.90 : 20,215.05 = 8,275.79 : x
  2. Step 2: Convert to fraction form
    14,648.90/20,215.05 = 8,275.79/x
  3. Step 3: Cross multiply
    14,648.90x = 20,215.05 × 8,275.79
  4. Step 4: Simplify right side
    14,648.90x = 167,295,508.64
  5. Step 5: Solve for x
    x = 167,295,508.64/14,648.90
  6. Step 6: Final answer
    x = 11,420.35

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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.