Home / 9,158.87-12,638.63-5,125.01

Finding the Fourth Proportional to 9,158.87, 12,638.63 and 5,125.01

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Solution

The fourth proportional to 9,158.87, 12,638.63 and 5,125.01 is: 7,072.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,158.87 : 12,638.63 = 5,125.01 : x
  2. Step 2: Convert to fraction form
    9,158.87/12,638.63 = 5,125.01/x
  3. Step 3: Cross multiply
    9,158.87x = 12,638.63 × 5,125.01
  4. Step 4: Simplify right side
    9,158.87x = 64,773,105.14
  5. Step 5: Solve for x
    x = 64,773,105.14/9,158.87
  6. Step 6: Final answer
    x = 7,072.17

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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.