Home / 18,945.54-28,398.47-6,461.19

Finding the Fourth Proportional to 18,945.54, 28,398.47 and 6,461.19

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Solution

The fourth proportional to 18,945.54, 28,398.47 and 6,461.19 is: 9,685.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.54 : 28,398.47 = 6,461.19 : x
  2. Step 2: Convert to fraction form
    18,945.54/28,398.47 = 6,461.19/x
  3. Step 3: Cross multiply
    18,945.54x = 28,398.47 × 6,461.19
  4. Step 4: Simplify right side
    18,945.54x = 183,487,878.07
  5. Step 5: Solve for x
    x = 183,487,878.07/18,945.54
  6. Step 6: Final answer
    x = 9,685.02

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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.