Home / 9,116.37-12,535.16-7,787.70

Finding the Fourth Proportional to 9,116.37, 12,535.16 and 7,787.70

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Solution

The fourth proportional to 9,116.37, 12,535.16 and 7,787.70 is: 10,708.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,116.37 : 12,535.16 = 7,787.70 : x
  2. Step 2: Convert to fraction form
    9,116.37/12,535.16 = 7,787.70/x
  3. Step 3: Cross multiply
    9,116.37x = 12,535.16 × 7,787.70
  4. Step 4: Simplify right side
    9,116.37x = 97,620,026.59
  5. Step 5: Solve for x
    x = 97,620,026.59/9,116.37
  6. Step 6: Final answer
    x = 10,708.21

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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.