Home / 18,945.08-28,411.46-8,948.28

Finding the Fourth Proportional to 18,945.08, 28,411.46 and 8,948.28

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Solution

The fourth proportional to 18,945.08, 28,411.46 and 8,948.28 is: 13,419.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.08 : 28,411.46 = 8,948.28 : x
  2. Step 2: Convert to fraction form
    18,945.08/28,411.46 = 8,948.28/x
  3. Step 3: Cross multiply
    18,945.08x = 28,411.46 × 8,948.28
  4. Step 4: Simplify right side
    18,945.08x = 254,233,721.66
  5. Step 5: Solve for x
    x = 254,233,721.66/18,945.08
  6. Step 6: Final answer
    x = 13,419.52

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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.