Home / 18,937.76-26,135.26-10,439.88

Finding the Fourth Proportional to 18,937.76, 26,135.26 and 10,439.88

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Solution

The fourth proportional to 18,937.76, 26,135.26 and 10,439.88 is: 14,407.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.76 : 26,135.26 = 10,439.88 : x
  2. Step 2: Convert to fraction form
    18,937.76/26,135.26 = 10,439.88/x
  3. Step 3: Cross multiply
    18,937.76x = 26,135.26 × 10,439.88
  4. Step 4: Simplify right side
    18,937.76x = 272,848,978.17
  5. Step 5: Solve for x
    x = 272,848,978.17/18,937.76
  6. Step 6: Final answer
    x = 14,407.67

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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.