Home / 15,448.94-21,320.86-8,735.76

Finding the Fourth Proportional to 15,448.94, 21,320.86 and 8,735.76

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Solution

The fourth proportional to 15,448.94, 21,320.86 and 8,735.76 is: 12,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,448.94 : 21,320.86 = 8,735.76 : x
  2. Step 2: Convert to fraction form
    15,448.94/21,320.86 = 8,735.76/x
  3. Step 3: Cross multiply
    15,448.94x = 21,320.86 × 8,735.76
  4. Step 4: Simplify right side
    15,448.94x = 186,253,915.95
  5. Step 5: Solve for x
    x = 186,253,915.95/15,448.94
  6. Step 6: Final answer
    x = 12,056.10

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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.