Home / 18,237.12-27,355.68-4,386.12

Finding the Fourth Proportional to 18,237.12, 27,355.68 and 4,386.12

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Solution

The fourth proportional to 18,237.12, 27,355.68 and 4,386.12 is: 6,579.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,237.12 : 27,355.68 = 4,386.12 : x
  2. Step 2: Convert to fraction form
    18,237.12/27,355.68 = 4,386.12/x
  3. Step 3: Cross multiply
    18,237.12x = 27,355.68 × 4,386.12
  4. Step 4: Simplify right side
    18,237.12x = 119,985,295.16
  5. Step 5: Solve for x
    x = 119,985,295.16/18,237.12
  6. Step 6: Final answer
    x = 6,579.18

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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.