Home / 7,624.20-10,509.75-5,498.76

Finding the Fourth Proportional to 7,624.20, 10,509.75 and 5,498.76

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Solution

The fourth proportional to 7,624.20, 10,509.75 and 5,498.76 is: 7,579.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,624.20 : 10,509.75 = 5,498.76 : x
  2. Step 2: Convert to fraction form
    7,624.20/10,509.75 = 5,498.76/x
  3. Step 3: Cross multiply
    7,624.20x = 10,509.75 × 5,498.76
  4. Step 4: Simplify right side
    7,624.20x = 57,790,592.91
  5. Step 5: Solve for x
    x = 57,790,592.91/7,624.20
  6. Step 6: Final answer
    x = 7,579.89

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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.