Home / 13,144.93-18,140.41-7,176.99

Finding the Fourth Proportional to 13,144.93, 18,140.41 and 7,176.99

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Solution

The fourth proportional to 13,144.93, 18,140.41 and 7,176.99 is: 9,904.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,144.93 : 18,140.41 = 7,176.99 : x
  2. Step 2: Convert to fraction form
    13,144.93/18,140.41 = 7,176.99/x
  3. Step 3: Cross multiply
    13,144.93x = 18,140.41 × 7,176.99
  4. Step 4: Simplify right side
    13,144.93x = 130,193,541.17
  5. Step 5: Solve for x
    x = 130,193,541.17/13,144.93
  6. Step 6: Final answer
    x = 9,904.47

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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.