Home / 7,007.79-10,433.88-6,909.72

Finding the Fourth Proportional to 7,007.79, 10,433.88 and 6,909.72

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Solution

The fourth proportional to 7,007.79, 10,433.88 and 6,909.72 is: 10,287.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007.79 : 10,433.88 = 6,909.72 : x
  2. Step 2: Convert to fraction form
    7,007.79/10,433.88 = 6,909.72/x
  3. Step 3: Cross multiply
    7,007.79x = 10,433.88 × 6,909.72
  4. Step 4: Simplify right side
    7,007.79x = 72,095,189.31
  5. Step 5: Solve for x
    x = 72,095,189.31/7,007.79
  6. Step 6: Final answer
    x = 10,287.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.