Home / 9,116.03-12,579.18-5,137.76

Finding the Fourth Proportional to 9,116.03, 12,579.18 and 5,137.76

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Solution

The fourth proportional to 9,116.03, 12,579.18 and 5,137.76 is: 7,089.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,116.03 : 12,579.18 = 5,137.76 : x
  2. Step 2: Convert to fraction form
    9,116.03/12,579.18 = 5,137.76/x
  3. Step 3: Cross multiply
    9,116.03x = 12,579.18 × 5,137.76
  4. Step 4: Simplify right side
    9,116.03x = 64,628,807.84
  5. Step 5: Solve for x
    x = 64,628,807.84/9,116.03
  6. Step 6: Final answer
    x = 7,089.58

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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.