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Finding the Fourth Proportional to 8,521.71, 12,774.31 and 4,363.67

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Solution

The fourth proportional to 8,521.71, 12,774.31 and 4,363.67 is: 6,541.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.71 : 12,774.31 = 4,363.67 : x
  2. Step 2: Convert to fraction form
    8,521.71/12,774.31 = 4,363.67/x
  3. Step 3: Cross multiply
    8,521.71x = 12,774.31 × 4,363.67
  4. Step 4: Simplify right side
    8,521.71x = 55,742,894.34
  5. Step 5: Solve for x
    x = 55,742,894.34/8,521.71
  6. Step 6: Final answer
    x = 6,541.28

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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.