Home / 12,943.28-19,410.13-4,621.07

Finding the Fourth Proportional to 12,943.28, 19,410.13 and 4,621.07

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Solution

The fourth proportional to 12,943.28, 19,410.13 and 4,621.07 is: 6,929.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943.28 : 19,410.13 = 4,621.07 : x
  2. Step 2: Convert to fraction form
    12,943.28/19,410.13 = 4,621.07/x
  3. Step 3: Cross multiply
    12,943.28x = 19,410.13 × 4,621.07
  4. Step 4: Simplify right side
    12,943.28x = 89,695,569.44
  5. Step 5: Solve for x
    x = 89,695,569.44/12,943.28
  6. Step 6: Final answer
    x = 6,929.89

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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.