Home / 15,915.46-21,961.65-9,200.02

Finding the Fourth Proportional to 15,915.46, 21,961.65 and 9,200.02

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Solution

The fourth proportional to 15,915.46, 21,961.65 and 9,200.02 is: 12,695.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915.46 : 21,961.65 = 9,200.02 : x
  2. Step 2: Convert to fraction form
    15,915.46/21,961.65 = 9,200.02/x
  3. Step 3: Cross multiply
    15,915.46x = 21,961.65 × 9,200.02
  4. Step 4: Simplify right side
    15,915.46x = 202,047,619.23
  5. Step 5: Solve for x
    x = 202,047,619.23/15,915.46
  6. Step 6: Final answer
    x = 12,695.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.