Home / 8,715.41-13,071.75-3,783.72

Finding the Fourth Proportional to 8,715.41, 13,071.75 and 3,783.72

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Solution

The fourth proportional to 8,715.41, 13,071.75 and 3,783.72 is: 5,674.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.41 : 13,071.75 = 3,783.72 : x
  2. Step 2: Convert to fraction form
    8,715.41/13,071.75 = 3,783.72/x
  3. Step 3: Cross multiply
    8,715.41x = 13,071.75 × 3,783.72
  4. Step 4: Simplify right side
    8,715.41x = 49,459,876.74
  5. Step 5: Solve for x
    x = 49,459,876.74/8,715.41
  6. Step 6: Final answer
    x = 5,674.99

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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.