Home / 13,144.68-18,140.06-7,176.74

Finding the Fourth Proportional to 13,144.68, 18,140.06 and 7,176.74

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Solution

The fourth proportional to 13,144.68, 18,140.06 and 7,176.74 is: 9,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,144.68 : 18,140.06 = 7,176.74 : x
  2. Step 2: Convert to fraction form
    13,144.68/18,140.06 = 7,176.74/x
  3. Step 3: Cross multiply
    13,144.68x = 18,140.06 × 7,176.74
  4. Step 4: Simplify right side
    13,144.68x = 130,186,421.45
  5. Step 5: Solve for x
    x = 130,186,421.45/13,144.68
  6. Step 6: Final answer
    x = 9,904.11

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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.