Home / 14,319.29-21,470.30-6,420.37

Finding the Fourth Proportional to 14,319.29, 21,470.30 and 6,420.37

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Solution

The fourth proportional to 14,319.29, 21,470.30 and 6,420.37 is: 9,626.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,319.29 : 21,470.30 = 6,420.37 : x
  2. Step 2: Convert to fraction form
    14,319.29/21,470.30 = 6,420.37/x
  3. Step 3: Cross multiply
    14,319.29x = 21,470.30 × 6,420.37
  4. Step 4: Simplify right side
    14,319.29x = 137,847,270.01
  5. Step 5: Solve for x
    x = 137,847,270.01/14,319.29
  6. Step 6: Final answer
    x = 9,626.68

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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.