Home / 15,915.32-21,972.30-10,627.64

Finding the Fourth Proportional to 15,915.32, 21,972.30 and 10,627.64

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Solution

The fourth proportional to 15,915.32, 21,972.30 and 10,627.64 is: 14,672.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915.32 : 21,972.30 = 10,627.64 : x
  2. Step 2: Convert to fraction form
    15,915.32/21,972.30 = 10,627.64/x
  3. Step 3: Cross multiply
    15,915.32x = 21,972.30 × 10,627.64
  4. Step 4: Simplify right side
    15,915.32x = 233,513,694.37
  5. Step 5: Solve for x
    x = 233,513,694.37/15,915.32
  6. Step 6: Final answer
    x = 14,672.26

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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.