Home / 13,144.10-18,139.14-7,176.02

Finding the Fourth Proportional to 13,144.10, 18,139.14 and 7,176.02

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Solution

The fourth proportional to 13,144.10, 18,139.14 and 7,176.02 is: 9,903.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,144.10 : 18,139.14 = 7,176.02 : x
  2. Step 2: Convert to fraction form
    13,144.10/18,139.14 = 7,176.02/x
  3. Step 3: Cross multiply
    13,144.10x = 18,139.14 × 7,176.02
  4. Step 4: Simplify right side
    13,144.10x = 130,166,831.42
  5. Step 5: Solve for x
    x = 130,166,831.42/13,144.10
  6. Step 6: Final answer
    x = 9,903.06

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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.