Home / 10,515.38-14,511.40-6,795.86

Finding the Fourth Proportional to 10,515.38, 14,511.40 and 6,795.86

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Solution

The fourth proportional to 10,515.38, 14,511.40 and 6,795.86 is: 9,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.38 : 14,511.40 = 6,795.86 : x
  2. Step 2: Convert to fraction form
    10,515.38/14,511.40 = 6,795.86/x
  3. Step 3: Cross multiply
    10,515.38x = 14,511.40 × 6,795.86
  4. Step 4: Simplify right side
    10,515.38x = 98,617,353.26
  5. Step 5: Solve for x
    x = 98,617,353.26/10,515.38
  6. Step 6: Final answer
    x = 9,378.40

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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.