Home / 14,647.31-20,214.74-8,360.63

Finding the Fourth Proportional to 14,647.31, 20,214.74 and 8,360.63

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Solution

The fourth proportional to 14,647.31, 20,214.74 and 8,360.63 is: 11,538.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,647.31 : 20,214.74 = 8,360.63 : x
  2. Step 2: Convert to fraction form
    14,647.31/20,214.74 = 8,360.63/x
  3. Step 3: Cross multiply
    14,647.31x = 20,214.74 × 8,360.63
  4. Step 4: Simplify right side
    14,647.31x = 169,007,961.69
  5. Step 5: Solve for x
    x = 169,007,961.69/14,647.31
  6. Step 6: Final answer
    x = 11,538.50

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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.