Home / 15,912.63-21,953.10-9,197.03

Finding the Fourth Proportional to 15,912.63, 21,953.10 and 9,197.03

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Solution

The fourth proportional to 15,912.63, 21,953.10 and 9,197.03 is: 12,688.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912.63 : 21,953.10 = 9,197.03 : x
  2. Step 2: Convert to fraction form
    15,912.63/21,953.10 = 9,197.03/x
  3. Step 3: Cross multiply
    15,912.63x = 21,953.10 × 9,197.03
  4. Step 4: Simplify right side
    15,912.63x = 201,903,209.53
  5. Step 5: Solve for x
    x = 201,903,209.53/15,912.63
  6. Step 6: Final answer
    x = 12,688.24

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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.