Home / 12,875.48-19,309.12-6,634.68

Finding the Fourth Proportional to 12,875.48, 19,309.12 and 6,634.68

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Solution

The fourth proportional to 12,875.48, 19,309.12 and 6,634.68 is: 9,949.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875.48 : 19,309.12 = 6,634.68 : x
  2. Step 2: Convert to fraction form
    12,875.48/19,309.12 = 6,634.68/x
  3. Step 3: Cross multiply
    12,875.48x = 19,309.12 × 6,634.68
  4. Step 4: Simplify right side
    12,875.48x = 128,109,832.28
  5. Step 5: Solve for x
    x = 128,109,832.28/12,875.48
  6. Step 6: Final answer
    x = 9,949.91

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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.