Home / 14,125.64-21,189.90-4,889.48

Finding the Fourth Proportional to 14,125.64, 21,189.90 and 4,889.48

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Solution

The fourth proportional to 14,125.64, 21,189.90 and 4,889.48 is: 7,334.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,125.64 : 21,189.90 = 4,889.48 : x
  2. Step 2: Convert to fraction form
    14,125.64/21,189.90 = 4,889.48/x
  3. Step 3: Cross multiply
    14,125.64x = 21,189.90 × 4,889.48
  4. Step 4: Simplify right side
    14,125.64x = 103,607,592.25
  5. Step 5: Solve for x
    x = 103,607,592.25/14,125.64
  6. Step 6: Final answer
    x = 7,334.72

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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.