Home / 10,717.40-14,786.36-6,240.20

Finding the Fourth Proportional to 10,717.40, 14,786.36 and 6,240.20

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Solution

The fourth proportional to 10,717.40, 14,786.36 and 6,240.20 is: 8,609.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,717.40 : 14,786.36 = 6,240.20 : x
  2. Step 2: Convert to fraction form
    10,717.40/14,786.36 = 6,240.20/x
  3. Step 3: Cross multiply
    10,717.40x = 14,786.36 × 6,240.20
  4. Step 4: Simplify right side
    10,717.40x = 92,269,775.51
  5. Step 5: Solve for x
    x = 92,269,775.51/10,717.40
  6. Step 6: Final answer
    x = 8,609.35

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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.