Home / 19,145.49-28,718.01-6,665.46

Finding the Fourth Proportional to 19,145.49, 28,718.01 and 6,665.46

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Solution

The fourth proportional to 19,145.49, 28,718.01 and 6,665.46 is: 9,998.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,145.49 : 28,718.01 = 6,665.46 : x
  2. Step 2: Convert to fraction form
    19,145.49/28,718.01 = 6,665.46/x
  3. Step 3: Cross multiply
    19,145.49x = 28,718.01 × 6,665.46
  4. Step 4: Simplify right side
    19,145.49x = 191,418,746.93
  5. Step 5: Solve for x
    x = 191,418,746.93/19,145.49
  6. Step 6: Final answer
    x = 9,998.11

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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.