Home / 10,719.69-14,790.63-6,240.75

Finding the Fourth Proportional to 10,719.69, 14,790.63 and 6,240.75

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Solution

The fourth proportional to 10,719.69, 14,790.63 and 6,240.75 is: 8,610.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.69 : 14,790.63 = 6,240.75 : x
  2. Step 2: Convert to fraction form
    10,719.69/14,790.63 = 6,240.75/x
  3. Step 3: Cross multiply
    10,719.69x = 14,790.63 × 6,240.75
  4. Step 4: Simplify right side
    10,719.69x = 92,304,624.17
  5. Step 5: Solve for x
    x = 92,304,624.17/10,719.69
  6. Step 6: Final answer
    x = 8,610.75

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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.