Home / 10,889.81-15,025.62-6,411.93

Finding the Fourth Proportional to 10,889.81, 15,025.62 and 6,411.93

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Solution

The fourth proportional to 10,889.81, 15,025.62 and 6,411.93 is: 8,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.81 : 15,025.62 = 6,411.93 : x
  2. Step 2: Convert to fraction form
    10,889.81/15,025.62 = 6,411.93/x
  3. Step 3: Cross multiply
    10,889.81x = 15,025.62 × 6,411.93
  4. Step 4: Simplify right side
    10,889.81x = 96,343,247.69
  5. Step 5: Solve for x
    x = 96,343,247.69/10,889.81
  6. Step 6: Final answer
    x = 8,847.10

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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.