Home / 13,227.13-18,254.01-7,920.93

Finding the Fourth Proportional to 13,227.13, 18,254.01 and 7,920.93

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Solution

The fourth proportional to 13,227.13, 18,254.01 and 7,920.93 is: 10,931.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,227.13 : 18,254.01 = 7,920.93 : x
  2. Step 2: Convert to fraction form
    13,227.13/18,254.01 = 7,920.93/x
  3. Step 3: Cross multiply
    13,227.13x = 18,254.01 × 7,920.93
  4. Step 4: Simplify right side
    13,227.13x = 144,588,735.43
  5. Step 5: Solve for x
    x = 144,588,735.43/13,227.13
  6. Step 6: Final answer
    x = 10,931.23

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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.