Home / 15,685.21-23,513.22-6,915.34

Finding the Fourth Proportional to 15,685.21, 23,513.22 and 6,915.34

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Solution

The fourth proportional to 15,685.21, 23,513.22 and 6,915.34 is: 10,366.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,685.21 : 23,513.22 = 6,915.34 : x
  2. Step 2: Convert to fraction form
    15,685.21/23,513.22 = 6,915.34/x
  3. Step 3: Cross multiply
    15,685.21x = 23,513.22 × 6,915.34
  4. Step 4: Simplify right side
    15,685.21x = 162,601,910.79
  5. Step 5: Solve for x
    x = 162,601,910.79/15,685.21
  6. Step 6: Final answer
    x = 10,366.58

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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.