Home / 14,501.48-20,012.42-8,214.28

Finding the Fourth Proportional to 14,501.48, 20,012.42 and 8,214.28

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Solution

The fourth proportional to 14,501.48, 20,012.42 and 8,214.28 is: 11,335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,501.48 : 20,012.42 = 8,214.28 : x
  2. Step 2: Convert to fraction form
    14,501.48/20,012.42 = 8,214.28/x
  3. Step 3: Cross multiply
    14,501.48x = 20,012.42 × 8,214.28
  4. Step 4: Simplify right side
    14,501.48x = 164,387,621.36
  5. Step 5: Solve for x
    x = 164,387,621.36/14,501.48
  6. Step 6: Final answer
    x = 11,335.92

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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.