Home / 7,887.36-10,880.28-5,088

Finding the Fourth Proportional to 7,887.36, 10,880.28 and 5,088

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Solution

The fourth proportional to 7,887.36, 10,880.28 and 5,088 is: 7,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.36 : 10,880.28 = 5,088 : x
  2. Step 2: Convert to fraction form
    7,887.36/10,880.28 = 5,088/x
  3. Step 3: Cross multiply
    7,887.36x = 10,880.28 × 5,088
  4. Step 4: Simplify right side
    7,887.36x = 55,358,864.64
  5. Step 5: Solve for x
    x = 55,358,864.64/7,887.36
  6. Step 6: Final answer
    x = 7,018.68

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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.