Home / 18,913.45-26,100.17-10,415.13

Finding the Fourth Proportional to 18,913.45, 26,100.17 and 10,415.13

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Solution

The fourth proportional to 18,913.45, 26,100.17 and 10,415.13 is: 14,372.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.45 : 26,100.17 = 10,415.13 : x
  2. Step 2: Convert to fraction form
    18,913.45/26,100.17 = 10,415.13/x
  3. Step 3: Cross multiply
    18,913.45x = 26,100.17 × 10,415.13
  4. Step 4: Simplify right side
    18,913.45x = 271,836,758.08
  5. Step 5: Solve for x
    x = 271,836,758.08/18,913.45
  6. Step 6: Final answer
    x = 14,372.67

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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.