Home / 10,311.17-14,220.01-8,721.15

Finding the Fourth Proportional to 10,311.17, 14,220.01 and 8,721.15

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Solution

The fourth proportional to 10,311.17, 14,220.01 and 8,721.15 is: 12,027.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,311.17 : 14,220.01 = 8,721.15 : x
  2. Step 2: Convert to fraction form
    10,311.17/14,220.01 = 8,721.15/x
  3. Step 3: Cross multiply
    10,311.17x = 14,220.01 × 8,721.15
  4. Step 4: Simplify right side
    10,311.17x = 124,014,840.21
  5. Step 5: Solve for x
    x = 124,014,840.21/10,311.17
  6. Step 6: Final answer
    x = 12,027.23

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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.