Home / 13,095.11-18,071.20-7,126.67

Finding the Fourth Proportional to 13,095.11, 18,071.20 and 7,126.67

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Solution

The fourth proportional to 13,095.11, 18,071.20 and 7,126.67 is: 9,834.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,095.11 : 18,071.20 = 7,126.67 : x
  2. Step 2: Convert to fraction form
    13,095.11/18,071.20 = 7,126.67/x
  3. Step 3: Cross multiply
    13,095.11x = 18,071.20 × 7,126.67
  4. Step 4: Simplify right side
    13,095.11x = 128,787,478.90
  5. Step 5: Solve for x
    x = 128,787,478.90/13,095.11
  6. Step 6: Final answer
    x = 9,834.78

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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.