Home / 9,143.57-13,715.83-2,904.07

Finding the Fourth Proportional to 9,143.57, 13,715.83 and 2,904.07

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Solution

The fourth proportional to 9,143.57, 13,715.83 and 2,904.07 is: 4,356.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.57 : 13,715.83 = 2,904.07 : x
  2. Step 2: Convert to fraction form
    9,143.57/13,715.83 = 2,904.07/x
  3. Step 3: Cross multiply
    9,143.57x = 13,715.83 × 2,904.07
  4. Step 4: Simplify right side
    9,143.57x = 39,831,681.62
  5. Step 5: Solve for x
    x = 39,831,681.62/9,143.57
  6. Step 6: Final answer
    x = 4,356.25

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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.