Home / 14,886.87-20,542.59-8,172.47

Finding the Fourth Proportional to 14,886.87, 20,542.59 and 8,172.47

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Solution

The fourth proportional to 14,886.87, 20,542.59 and 8,172.47 is: 11,277.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,886.87 : 20,542.59 = 8,172.47 : x
  2. Step 2: Convert to fraction form
    14,886.87/20,542.59 = 8,172.47/x
  3. Step 3: Cross multiply
    14,886.87x = 20,542.59 × 8,172.47
  4. Step 4: Simplify right side
    14,886.87x = 167,883,659.63
  5. Step 5: Solve for x
    x = 167,883,659.63/14,886.87
  6. Step 6: Final answer
    x = 11,277.30

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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.