Home / 8,657.40-11,947.56-4,880.71

Finding the Fourth Proportional to 8,657.40, 11,947.56 and 4,880.71

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Solution

The fourth proportional to 8,657.40, 11,947.56 and 4,880.71 is: 6,735.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,657.40 : 11,947.56 = 4,880.71 : x
  2. Step 2: Convert to fraction form
    8,657.40/11,947.56 = 4,880.71/x
  3. Step 3: Cross multiply
    8,657.40x = 11,947.56 × 4,880.71
  4. Step 4: Simplify right side
    8,657.40x = 58,312,515.83
  5. Step 5: Solve for x
    x = 58,312,515.83/8,657.40
  6. Step 6: Final answer
    x = 6,735.57

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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.