Home / 11,121.84-15,348.60-6,154.16

Finding the Fourth Proportional to 11,121.84, 15,348.60 and 6,154.16

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Solution

The fourth proportional to 11,121.84, 15,348.60 and 6,154.16 is: 8,493.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.84 : 15,348.60 = 6,154.16 : x
  2. Step 2: Convert to fraction form
    11,121.84/15,348.60 = 6,154.16/x
  3. Step 3: Cross multiply
    11,121.84x = 15,348.60 × 6,154.16
  4. Step 4: Simplify right side
    11,121.84x = 94,457,740.18
  5. Step 5: Solve for x
    x = 94,457,740.18/11,121.84
  6. Step 6: Final answer
    x = 8,493.00

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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.