Home / 13,301.63-18,339.21-10,902.77

Finding the Fourth Proportional to 13,301.63, 18,339.21 and 10,902.77

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Solution

The fourth proportional to 13,301.63, 18,339.21 and 10,902.77 is: 15,031.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301.63 : 18,339.21 = 10,902.77 : x
  2. Step 2: Convert to fraction form
    13,301.63/18,339.21 = 10,902.77/x
  3. Step 3: Cross multiply
    13,301.63x = 18,339.21 × 10,902.77
  4. Step 4: Simplify right side
    13,301.63x = 199,948,188.61
  5. Step 5: Solve for x
    x = 199,948,188.61/13,301.63
  6. Step 6: Final answer
    x = 15,031.86

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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.