Home / 13,410.32-18,506.36-7,442.48

Finding the Fourth Proportional to 13,410.32, 18,506.36 and 7,442.48

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Solution

The fourth proportional to 13,410.32, 18,506.36 and 7,442.48 is: 10,270.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.32 : 18,506.36 = 7,442.48 : x
  2. Step 2: Convert to fraction form
    13,410.32/18,506.36 = 7,442.48/x
  3. Step 3: Cross multiply
    13,410.32x = 18,506.36 × 7,442.48
  4. Step 4: Simplify right side
    13,410.32x = 137,733,214.17
  5. Step 5: Solve for x
    x = 137,733,214.17/13,410.32
  6. Step 6: Final answer
    x = 10,270.69

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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.