Home / 10,611.36-14,639.76-6,418.08

Finding the Fourth Proportional to 10,611.36, 14,639.76 and 6,418.08

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Solution

The fourth proportional to 10,611.36, 14,639.76 and 6,418.08 is: 8,854.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.36 : 14,639.76 = 6,418.08 : x
  2. Step 2: Convert to fraction form
    10,611.36/14,639.76 = 6,418.08/x
  3. Step 3: Cross multiply
    10,611.36x = 14,639.76 × 6,418.08
  4. Step 4: Simplify right side
    10,611.36x = 93,959,150.86
  5. Step 5: Solve for x
    x = 93,959,150.86/10,611.36
  6. Step 6: Final answer
    x = 8,854.58

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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.