Home / 8,827.28-13,236.64-5,130.57

Finding the Fourth Proportional to 8,827.28, 13,236.64 and 5,130.57

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Solution

The fourth proportional to 8,827.28, 13,236.64 and 5,130.57 is: 7,693.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,827.28 : 13,236.64 = 5,130.57 : x
  2. Step 2: Convert to fraction form
    8,827.28/13,236.64 = 5,130.57/x
  3. Step 3: Cross multiply
    8,827.28x = 13,236.64 × 5,130.57
  4. Step 4: Simplify right side
    8,827.28x = 67,911,495.26
  5. Step 5: Solve for x
    x = 67,911,495.26/8,827.28
  6. Step 6: Final answer
    x = 7,693.37

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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.