Home / 14,321.40-21,490.50-6,000.78

Finding the Fourth Proportional to 14,321.40, 21,490.50 and 6,000.78

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Solution

The fourth proportional to 14,321.40, 21,490.50 and 6,000.78 is: 9,004.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,321.40 : 21,490.50 = 6,000.78 : x
  2. Step 2: Convert to fraction form
    14,321.40/21,490.50 = 6,000.78/x
  3. Step 3: Cross multiply
    14,321.40x = 21,490.50 × 6,000.78
  4. Step 4: Simplify right side
    14,321.40x = 128,959,762.59
  5. Step 5: Solve for x
    x = 128,959,762.59/14,321.40
  6. Step 6: Final answer
    x = 9,004.69

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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.