Home / 12,087.77-18,138.85-6,541.01

Finding the Fourth Proportional to 12,087.77, 18,138.85 and 6,541.01

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Solution

The fourth proportional to 12,087.77, 18,138.85 and 6,541.01 is: 9,815.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.77 : 18,138.85 = 6,541.01 : x
  2. Step 2: Convert to fraction form
    12,087.77/18,138.85 = 6,541.01/x
  3. Step 3: Cross multiply
    12,087.77x = 18,138.85 × 6,541.01
  4. Step 4: Simplify right side
    12,087.77x = 118,646,292.19
  5. Step 5: Solve for x
    x = 118,646,292.19/12,087.77
  6. Step 6: Final answer
    x = 9,815.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.