Home / 10,117.89-13,970.21-6,144.37

Finding the Fourth Proportional to 10,117.89, 13,970.21 and 6,144.37

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Solution

The fourth proportional to 10,117.89, 13,970.21 and 6,144.37 is: 8,483.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.89 : 13,970.21 = 6,144.37 : x
  2. Step 2: Convert to fraction form
    10,117.89/13,970.21 = 6,144.37/x
  3. Step 3: Cross multiply
    10,117.89x = 13,970.21 × 6,144.37
  4. Step 4: Simplify right side
    10,117.89x = 85,838,073.57
  5. Step 5: Solve for x
    x = 85,838,073.57/10,117.89
  6. Step 6: Final answer
    x = 8,483.79

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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.