Home / 11,130.69-16,689.78-7,624.65

Finding the Fourth Proportional to 11,130.69, 16,689.78 and 7,624.65

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Solution

The fourth proportional to 11,130.69, 16,689.78 and 7,624.65 is: 11,432.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.69 : 16,689.78 = 7,624.65 : x
  2. Step 2: Convert to fraction form
    11,130.69/16,689.78 = 7,624.65/x
  3. Step 3: Cross multiply
    11,130.69x = 16,689.78 × 7,624.65
  4. Step 4: Simplify right side
    11,130.69x = 127,253,731.08
  5. Step 5: Solve for x
    x = 127,253,731.08/11,130.69
  6. Step 6: Final answer
    x = 11,432.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.