Home / 15,432.07-23,161.75-7,940.90

Finding the Fourth Proportional to 15,432.07, 23,161.75 and 7,940.90

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Solution

The fourth proportional to 15,432.07, 23,161.75 and 7,940.90 is: 11,918.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.07 : 23,161.75 = 7,940.90 : x
  2. Step 2: Convert to fraction form
    15,432.07/23,161.75 = 7,940.90/x
  3. Step 3: Cross multiply
    15,432.07x = 23,161.75 × 7,940.90
  4. Step 4: Simplify right side
    15,432.07x = 183,925,140.58
  5. Step 5: Solve for x
    x = 183,925,140.58/15,432.07
  6. Step 6: Final answer
    x = 11,918.37

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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.