Home / 12,281.54-18,424.14-4,386.08

Finding the Fourth Proportional to 12,281.54, 18,424.14 and 4,386.08

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Solution

The fourth proportional to 12,281.54, 18,424.14 and 4,386.08 is: 6,579.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.54 : 18,424.14 = 4,386.08 : x
  2. Step 2: Convert to fraction form
    12,281.54/18,424.14 = 4,386.08/x
  3. Step 3: Cross multiply
    12,281.54x = 18,424.14 × 4,386.08
  4. Step 4: Simplify right side
    12,281.54x = 80,809,751.97
  5. Step 5: Solve for x
    x = 80,809,751.97/12,281.54
  6. Step 6: Final answer
    x = 6,579.77

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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.