Home / 10,008.16-13,809.36-6,280.48

Finding the Fourth Proportional to 10,008.16, 13,809.36 and 6,280.48

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Solution

The fourth proportional to 10,008.16, 13,809.36 and 6,280.48 is: 8,665.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.16 : 13,809.36 = 6,280.48 : x
  2. Step 2: Convert to fraction form
    10,008.16/13,809.36 = 6,280.48/x
  3. Step 3: Cross multiply
    10,008.16x = 13,809.36 × 6,280.48
  4. Step 4: Simplify right side
    10,008.16x = 86,729,409.29
  5. Step 5: Solve for x
    x = 86,729,409.29/10,008.16
  6. Step 6: Final answer
    x = 8,665.87

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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.