Home / 10,719.21-14,790.12-6,470.97

Finding the Fourth Proportional to 10,719.21, 14,790.12 and 6,470.97

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Solution

The fourth proportional to 10,719.21, 14,790.12 and 6,470.97 is: 8,928.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.21 : 14,790.12 = 6,470.97 : x
  2. Step 2: Convert to fraction form
    10,719.21/14,790.12 = 6,470.97/x
  3. Step 3: Cross multiply
    10,719.21x = 14,790.12 × 6,470.97
  4. Step 4: Simplify right side
    10,719.21x = 95,706,422.82
  5. Step 5: Solve for x
    x = 95,706,422.82/10,719.21
  6. Step 6: Final answer
    x = 8,928.50

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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.