Home / 7,780.34-10,736.87-4,423.07

Finding the Fourth Proportional to 7,780.34, 10,736.87 and 4,423.07

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Solution

The fourth proportional to 7,780.34, 10,736.87 and 4,423.07 is: 6,103.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.34 : 10,736.87 = 4,423.07 : x
  2. Step 2: Convert to fraction form
    7,780.34/10,736.87 = 4,423.07/x
  3. Step 3: Cross multiply
    7,780.34x = 10,736.87 × 4,423.07
  4. Step 4: Simplify right side
    7,780.34x = 47,489,927.59
  5. Step 5: Solve for x
    x = 47,489,927.59/7,780.34
  6. Step 6: Final answer
    x = 6,103.84

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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.