Home / 9,938.05-13,715.81-6,411.52

Finding the Fourth Proportional to 9,938.05, 13,715.81 and 6,411.52

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Solution

The fourth proportional to 9,938.05, 13,715.81 and 6,411.52 is: 8,848.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938.05 : 13,715.81 = 6,411.52 : x
  2. Step 2: Convert to fraction form
    9,938.05/13,715.81 = 6,411.52/x
  3. Step 3: Cross multiply
    9,938.05x = 13,715.81 × 6,411.52
  4. Step 4: Simplify right side
    9,938.05x = 87,939,190.13
  5. Step 5: Solve for x
    x = 87,939,190.13/9,938.05
  6. Step 6: Final answer
    x = 8,848.74

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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.