Home / 9,109.50-13,669.95-3,915.36

Finding the Fourth Proportional to 9,109.50, 13,669.95 and 3,915.36

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Solution

The fourth proportional to 9,109.50, 13,669.95 and 3,915.36 is: 5,875.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.50 : 13,669.95 = 3,915.36 : x
  2. Step 2: Convert to fraction form
    9,109.50/13,669.95 = 3,915.36/x
  3. Step 3: Cross multiply
    9,109.50x = 13,669.95 × 3,915.36
  4. Step 4: Simplify right side
    9,109.50x = 53,522,775.43
  5. Step 5: Solve for x
    x = 53,522,775.43/9,109.50
  6. Step 6: Final answer
    x = 5,875.49

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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.