Home / 11,140.52-15,370.44-6,424.16

Finding the Fourth Proportional to 11,140.52, 15,370.44 and 6,424.16

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Solution

The fourth proportional to 11,140.52, 15,370.44 and 6,424.16 is: 8,863.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.52 : 15,370.44 = 6,424.16 : x
  2. Step 2: Convert to fraction form
    11,140.52/15,370.44 = 6,424.16/x
  3. Step 3: Cross multiply
    11,140.52x = 15,370.44 × 6,424.16
  4. Step 4: Simplify right side
    11,140.52x = 98,742,165.83
  5. Step 5: Solve for x
    x = 98,742,165.83/11,140.52
  6. Step 6: Final answer
    x = 8,863.34

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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.