Home / 9,328.08-12,875.28-5,351.28

Finding the Fourth Proportional to 9,328.08, 12,875.28 and 5,351.28

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Solution

The fourth proportional to 9,328.08, 12,875.28 and 5,351.28 is: 7,386.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.08 : 12,875.28 = 5,351.28 : x
  2. Step 2: Convert to fraction form
    9,328.08/12,875.28 = 5,351.28/x
  3. Step 3: Cross multiply
    9,328.08x = 12,875.28 × 5,351.28
  4. Step 4: Simplify right side
    9,328.08x = 68,899,228.36
  5. Step 5: Solve for x
    x = 68,899,228.36/9,328.08
  6. Step 6: Final answer
    x = 7,386.22

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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.