Home / 14,651.47-20,215.52-8,682.10

Finding the Fourth Proportional to 14,651.47, 20,215.52 and 8,682.10

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Solution

The fourth proportional to 14,651.47, 20,215.52 and 8,682.10 is: 11,979.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.47 : 20,215.52 = 8,682.10 : x
  2. Step 2: Convert to fraction form
    14,651.47/20,215.52 = 8,682.10/x
  3. Step 3: Cross multiply
    14,651.47x = 20,215.52 × 8,682.10
  4. Step 4: Simplify right side
    14,651.47x = 175,513,166.19
  5. Step 5: Solve for x
    x = 175,513,166.19/14,651.47
  6. Step 6: Final answer
    x = 11,979.22

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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.