Home / 14,647.74-20,215.12-8,275.50

Finding the Fourth Proportional to 14,647.74, 20,215.12 and 8,275.50

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Solution

The fourth proportional to 14,647.74, 20,215.12 and 8,275.50 is: 11,420.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,647.74 : 20,215.12 = 8,275.50 : x
  2. Step 2: Convert to fraction form
    14,647.74/20,215.12 = 8,275.50/x
  3. Step 3: Cross multiply
    14,647.74x = 20,215.12 × 8,275.50
  4. Step 4: Simplify right side
    14,647.74x = 167,290,083.11
  5. Step 5: Solve for x
    x = 167,290,083.11/14,647.74
  6. Step 6: Final answer
    x = 11,420.88

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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.