Home / 18,458.31-27,684.35-5,307.63

Finding the Fourth Proportional to 18,458.31, 27,684.35 and 5,307.63

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Solution

The fourth proportional to 18,458.31, 27,684.35 and 5,307.63 is: 7,960.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.31 : 27,684.35 = 5,307.63 : x
  2. Step 2: Convert to fraction form
    18,458.31/27,684.35 = 5,307.63/x
  3. Step 3: Cross multiply
    18,458.31x = 27,684.35 × 5,307.63
  4. Step 4: Simplify right side
    18,458.31x = 146,938,176.14
  5. Step 5: Solve for x
    x = 146,938,176.14/18,458.31
  6. Step 6: Final answer
    x = 7,960.54

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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.