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Finding the Fourth Proportional to 11,203.57, 15,460.03 and 6,488.16

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Solution

The fourth proportional to 11,203.57, 15,460.03 and 6,488.16 is: 8,953.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,203.57 : 15,460.03 = 6,488.16 : x
  2. Step 2: Convert to fraction form
    11,203.57/15,460.03 = 6,488.16/x
  3. Step 3: Cross multiply
    11,203.57x = 15,460.03 × 6,488.16
  4. Step 4: Simplify right side
    11,203.57x = 100,307,148.24
  5. Step 5: Solve for x
    x = 100,307,148.24/11,203.57
  6. Step 6: Final answer
    x = 8,953.14

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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.