Home / 12,366.45-17,065.80-6,915.56

Finding the Fourth Proportional to 12,366.45, 17,065.80 and 6,915.56

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Solution

The fourth proportional to 12,366.45, 17,065.80 and 6,915.56 is: 9,543.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366.45 : 17,065.80 = 6,915.56 : x
  2. Step 2: Convert to fraction form
    12,366.45/17,065.80 = 6,915.56/x
  3. Step 3: Cross multiply
    12,366.45x = 17,065.80 × 6,915.56
  4. Step 4: Simplify right side
    12,366.45x = 118,019,478.52
  5. Step 5: Solve for x
    x = 118,019,478.52/12,366.45
  6. Step 6: Final answer
    x = 9,543.52

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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.