Home / 15,908.64-21,951.36-9,193.20

Finding the Fourth Proportional to 15,908.64, 21,951.36 and 9,193.20

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Solution

The fourth proportional to 15,908.64, 21,951.36 and 9,193.20 is: 12,685.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,908.64 : 21,951.36 = 9,193.20 : x
  2. Step 2: Convert to fraction form
    15,908.64/21,951.36 = 9,193.20/x
  3. Step 3: Cross multiply
    15,908.64x = 21,951.36 × 9,193.20
  4. Step 4: Simplify right side
    15,908.64x = 201,803,242.75
  5. Step 5: Solve for x
    x = 201,803,242.75/15,908.64
  6. Step 6: Final answer
    x = 12,685.13

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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.