Home / 10,909.96-15,058.80-6,436.28

Finding the Fourth Proportional to 10,909.96, 15,058.80 and 6,436.28

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Solution

The fourth proportional to 10,909.96, 15,058.80 and 6,436.28 is: 8,883.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.96 : 15,058.80 = 6,436.28 : x
  2. Step 2: Convert to fraction form
    10,909.96/15,058.80 = 6,436.28/x
  3. Step 3: Cross multiply
    10,909.96x = 15,058.80 × 6,436.28
  4. Step 4: Simplify right side
    10,909.96x = 96,922,653.26
  5. Step 5: Solve for x
    x = 96,922,653.26/10,909.96
  6. Step 6: Final answer
    x = 8,883.87

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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.