Home / 15,945.65-23,918.47-4,258.56

Finding the Fourth Proportional to 15,945.65, 23,918.47 and 4,258.56

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Solution

The fourth proportional to 15,945.65, 23,918.47 and 4,258.56 is: 6,387.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,945.65 : 23,918.47 = 4,258.56 : x
  2. Step 2: Convert to fraction form
    15,945.65/23,918.47 = 4,258.56/x
  3. Step 3: Cross multiply
    15,945.65x = 23,918.47 × 4,258.56
  4. Step 4: Simplify right side
    15,945.65x = 101,858,239.60
  5. Step 5: Solve for x
    x = 101,858,239.60/15,945.65
  6. Step 6: Final answer
    x = 6,387.84

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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.