Home / 18,866.49-28,312.73-7,773.19

Finding the Fourth Proportional to 18,866.49, 28,312.73 and 7,773.19

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Solution

The fourth proportional to 18,866.49, 28,312.73 and 7,773.19 is: 11,665.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.49 : 28,312.73 = 7,773.19 : x
  2. Step 2: Convert to fraction form
    18,866.49/28,312.73 = 7,773.19/x
  3. Step 3: Cross multiply
    18,866.49x = 28,312.73 × 7,773.19
  4. Step 4: Simplify right side
    18,866.49x = 220,080,226.23
  5. Step 5: Solve for x
    x = 220,080,226.23/18,866.49
  6. Step 6: Final answer
    x = 11,665.14

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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.