Home / 10,237.91-15,336.54-7,889.76

Finding the Fourth Proportional to 10,237.91, 15,336.54 and 7,889.76

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Solution

The fourth proportional to 10,237.91, 15,336.54 and 7,889.76 is: 11,818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,237.91 : 15,336.54 = 7,889.76 : x
  2. Step 2: Convert to fraction form
    10,237.91/15,336.54 = 7,889.76/x
  3. Step 3: Cross multiply
    10,237.91x = 15,336.54 × 7,889.76
  4. Step 4: Simplify right side
    10,237.91x = 121,001,619.83
  5. Step 5: Solve for x
    x = 121,001,619.83/10,237.91
  6. Step 6: Final answer
    x = 11,818.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.