Home / 10,153.84-14,014.83-8,129.35

Finding the Fourth Proportional to 10,153.84, 14,014.83 and 8,129.35

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Solution

The fourth proportional to 10,153.84, 14,014.83 and 8,129.35 is: 11,220.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,153.84 : 14,014.83 = 8,129.35 : x
  2. Step 2: Convert to fraction form
    10,153.84/14,014.83 = 8,129.35/x
  3. Step 3: Cross multiply
    10,153.84x = 14,014.83 × 8,129.35
  4. Step 4: Simplify right side
    10,153.84x = 113,931,388.19
  5. Step 5: Solve for x
    x = 113,931,388.19/10,153.84
  6. Step 6: Final answer
    x = 11,220.53

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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.