Home / 10,707.90-14,772.24-6,722.70

Finding the Fourth Proportional to 10,707.90, 14,772.24 and 6,722.70

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Solution

The fourth proportional to 10,707.90, 14,772.24 and 6,722.70 is: 9,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,707.90 : 14,772.24 = 6,722.70 : x
  2. Step 2: Convert to fraction form
    10,707.90/14,772.24 = 6,722.70/x
  3. Step 3: Cross multiply
    10,707.90x = 14,772.24 × 6,722.70
  4. Step 4: Simplify right side
    10,707.90x = 99,309,337.85
  5. Step 5: Solve for x
    x = 99,309,337.85/10,707.90
  6. Step 6: Final answer
    x = 9,274.40

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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.