Home / 11,280.71-15,568.77-6,436.63

Finding the Fourth Proportional to 11,280.71, 15,568.77 and 6,436.63

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Solution

The fourth proportional to 11,280.71, 15,568.77 and 6,436.63 is: 8,883.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.71 : 15,568.77 = 6,436.63 : x
  2. Step 2: Convert to fraction form
    11,280.71/15,568.77 = 6,436.63/x
  3. Step 3: Cross multiply
    11,280.71x = 15,568.77 × 6,436.63
  4. Step 4: Simplify right side
    11,280.71x = 100,210,373.12
  5. Step 5: Solve for x
    x = 100,210,373.12/11,280.71
  6. Step 6: Final answer
    x = 8,883.34

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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.