Home / 18,957.29-28,437.21-5,818.82

Finding the Fourth Proportional to 18,957.29, 28,437.21 and 5,818.82

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Solution

The fourth proportional to 18,957.29, 28,437.21 and 5,818.82 is: 8,728.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957.29 : 28,437.21 = 5,818.82 : x
  2. Step 2: Convert to fraction form
    18,957.29/28,437.21 = 5,818.82/x
  3. Step 3: Cross multiply
    18,957.29x = 28,437.21 × 5,818.82
  4. Step 4: Simplify right side
    18,957.29x = 165,470,864.11
  5. Step 5: Solve for x
    x = 165,470,864.11/18,957.29
  6. Step 6: Final answer
    x = 8,728.62

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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.