Home / 13,192.93-18,206.28-7,143.23

Finding the Fourth Proportional to 13,192.93, 18,206.28 and 7,143.23

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Solution

The fourth proportional to 13,192.93, 18,206.28 and 7,143.23 is: 9,857.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,192.93 : 18,206.28 = 7,143.23 : x
  2. Step 2: Convert to fraction form
    13,192.93/18,206.28 = 7,143.23/x
  3. Step 3: Cross multiply
    13,192.93x = 18,206.28 × 7,143.23
  4. Step 4: Simplify right side
    13,192.93x = 130,051,609.77
  5. Step 5: Solve for x
    x = 130,051,609.77/13,192.93
  6. Step 6: Final answer
    x = 9,857.67

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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.