Home / 14,278.27-21,412.08-4,915.64

Finding the Fourth Proportional to 14,278.27, 21,412.08 and 4,915.64

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Solution

The fourth proportional to 14,278.27, 21,412.08 and 4,915.64 is: 7,371.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.27 : 21,412.08 = 4,915.64 : x
  2. Step 2: Convert to fraction form
    14,278.27/21,412.08 = 4,915.64/x
  3. Step 3: Cross multiply
    14,278.27x = 21,412.08 × 4,915.64
  4. Step 4: Simplify right side
    14,278.27x = 105,254,076.93
  5. Step 5: Solve for x
    x = 105,254,076.93/14,278.27
  6. Step 6: Final answer
    x = 7,371.63

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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.