Home / 10,386.26-14,334.06-6,138.72

Finding the Fourth Proportional to 10,386.26, 14,334.06 and 6,138.72

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Solution

The fourth proportional to 10,386.26, 14,334.06 and 6,138.72 is: 8,472.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.26 : 14,334.06 = 6,138.72 : x
  2. Step 2: Convert to fraction form
    10,386.26/14,334.06 = 6,138.72/x
  3. Step 3: Cross multiply
    10,386.26x = 14,334.06 × 6,138.72
  4. Step 4: Simplify right side
    10,386.26x = 87,992,803.82
  5. Step 5: Solve for x
    x = 87,992,803.82/10,386.26
  6. Step 6: Final answer
    x = 8,472.04

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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.