Home / 13,531.52-20,291.47-4,647.74

Finding the Fourth Proportional to 13,531.52, 20,291.47 and 4,647.74

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Solution

The fourth proportional to 13,531.52, 20,291.47 and 4,647.74 is: 6,969.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.52 : 20,291.47 = 4,647.74 : x
  2. Step 2: Convert to fraction form
    13,531.52/20,291.47 = 4,647.74/x
  3. Step 3: Cross multiply
    13,531.52x = 20,291.47 × 4,647.74
  4. Step 4: Simplify right side
    13,531.52x = 94,309,539.05
  5. Step 5: Solve for x
    x = 94,309,539.05/13,531.52
  6. Step 6: Final answer
    x = 6,969.62

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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.