Home / 12,173.95-18,268.20-5,248.45

Finding the Fourth Proportional to 12,173.95, 18,268.20 and 5,248.45

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Solution

The fourth proportional to 12,173.95, 18,268.20 and 5,248.45 is: 7,875.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.95 : 18,268.20 = 5,248.45 : x
  2. Step 2: Convert to fraction form
    12,173.95/18,268.20 = 5,248.45/x
  3. Step 3: Cross multiply
    12,173.95x = 18,268.20 × 5,248.45
  4. Step 4: Simplify right side
    12,173.95x = 95,879,642.95
  5. Step 5: Solve for x
    x = 95,879,642.95/12,173.95
  6. Step 6: Final answer
    x = 7,875.81

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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.