Home / 9,113.58-12,576.60-5,135.07

Finding the Fourth Proportional to 9,113.58, 12,576.60 and 5,135.07

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Solution

The fourth proportional to 9,113.58, 12,576.60 and 5,135.07 is: 7,086.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,113.58 : 12,576.60 = 5,135.07 : x
  2. Step 2: Convert to fraction form
    9,113.58/12,576.60 = 5,135.07/x
  3. Step 3: Cross multiply
    9,113.58x = 12,576.60 × 5,135.07
  4. Step 4: Simplify right side
    9,113.58x = 64,581,721.36
  5. Step 5: Solve for x
    x = 64,581,721.36/9,113.58
  6. Step 6: Final answer
    x = 7,086.32

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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.