Home / 9,087.10-13,622.55-5,385.40

Finding the Fourth Proportional to 9,087.10, 13,622.55 and 5,385.40

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Solution

The fourth proportional to 9,087.10, 13,622.55 and 5,385.40 is: 8,073.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,087.10 : 13,622.55 = 5,385.40 : x
  2. Step 2: Convert to fraction form
    9,087.10/13,622.55 = 5,385.40/x
  3. Step 3: Cross multiply
    9,087.10x = 13,622.55 × 5,385.40
  4. Step 4: Simplify right side
    9,087.10x = 73,362,880.77
  5. Step 5: Solve for x
    x = 73,362,880.77/9,087.10
  6. Step 6: Final answer
    x = 8,073.30

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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.