Home / 10,611.09-14,643.45-6,419.34

Finding the Fourth Proportional to 10,611.09, 14,643.45 and 6,419.34

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Solution

The fourth proportional to 10,611.09, 14,643.45 and 6,419.34 is: 8,858.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.09 : 14,643.45 = 6,419.34 : x
  2. Step 2: Convert to fraction form
    10,611.09/14,643.45 = 6,419.34/x
  3. Step 3: Cross multiply
    10,611.09x = 14,643.45 × 6,419.34
  4. Step 4: Simplify right side
    10,611.09x = 94,001,284.32
  5. Step 5: Solve for x
    x = 94,001,284.32/10,611.09
  6. Step 6: Final answer
    x = 8,858.78

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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.