Home / 13,242.24-18,243.36-10,897.92

Finding the Fourth Proportional to 13,242.24, 18,243.36 and 10,897.92

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Solution

The fourth proportional to 13,242.24, 18,243.36 and 10,897.92 is: 15,013.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.24 : 18,243.36 = 10,897.92 : x
  2. Step 2: Convert to fraction form
    13,242.24/18,243.36 = 10,897.92/x
  3. Step 3: Cross multiply
    13,242.24x = 18,243.36 × 10,897.92
  4. Step 4: Simplify right side
    13,242.24x = 198,814,677.81
  5. Step 5: Solve for x
    x = 198,814,677.81/13,242.24
  6. Step 6: Final answer
    x = 15,013.67

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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.