Home / 10,440.50-14,415.46-6,720.98

Finding the Fourth Proportional to 10,440.50, 14,415.46 and 6,720.98

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Solution

The fourth proportional to 10,440.50, 14,415.46 and 6,720.98 is: 9,279.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.50 : 14,415.46 = 6,720.98 : x
  2. Step 2: Convert to fraction form
    10,440.50/14,415.46 = 6,720.98/x
  3. Step 3: Cross multiply
    10,440.50x = 14,415.46 × 6,720.98
  4. Step 4: Simplify right side
    10,440.50x = 96,886,018.35
  5. Step 5: Solve for x
    x = 96,886,018.35/10,440.50
  6. Step 6: Final answer
    x = 9,279.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.