Home / 19,146.50-28,718.09-6,663.30

Finding the Fourth Proportional to 19,146.50, 28,718.09 and 6,663.30

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Solution

The fourth proportional to 19,146.50, 28,718.09 and 6,663.30 is: 9,994.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.50 : 28,718.09 = 6,663.30 : x
  2. Step 2: Convert to fraction form
    19,146.50/28,718.09 = 6,663.30/x
  3. Step 3: Cross multiply
    19,146.50x = 28,718.09 × 6,663.30
  4. Step 4: Simplify right side
    19,146.50x = 191,357,249.10
  5. Step 5: Solve for x
    x = 191,357,249.10/19,146.50
  6. Step 6: Final answer
    x = 9,994.37

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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.