Home / 10,864.70-14,988.06-6,388.24

Finding the Fourth Proportional to 10,864.70, 14,988.06 and 6,388.24

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Solution

The fourth proportional to 10,864.70, 14,988.06 and 6,388.24 is: 8,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,864.70 : 14,988.06 = 6,388.24 : x
  2. Step 2: Convert to fraction form
    10,864.70/14,988.06 = 6,388.24/x
  3. Step 3: Cross multiply
    10,864.70x = 14,988.06 × 6,388.24
  4. Step 4: Simplify right side
    10,864.70x = 95,747,324.41
  5. Step 5: Solve for x
    x = 95,747,324.41/10,864.70
  6. Step 6: Final answer
    x = 8,812.70

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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.