Home / 14,000.79-21,004.26-10,291.78

Finding the Fourth Proportional to 14,000.79, 21,004.26 and 10,291.78

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Solution

The fourth proportional to 14,000.79, 21,004.26 and 10,291.78 is: 15,439.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.79 : 21,004.26 = 10,291.78 : x
  2. Step 2: Convert to fraction form
    14,000.79/21,004.26 = 10,291.78/x
  3. Step 3: Cross multiply
    14,000.79x = 21,004.26 × 10,291.78
  4. Step 4: Simplify right side
    14,000.79x = 216,171,117.96
  5. Step 5: Solve for x
    x = 216,171,117.96/14,000.79
  6. Step 6: Final answer
    x = 15,439.92

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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.