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Finding the Fourth Proportional to 11,670.48, 17,459.64 and 9,017.28

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Solution

The fourth proportional to 11,670.48, 17,459.64 and 9,017.28 is: 13,490.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,670.48 : 17,459.64 = 9,017.28 : x
  2. Step 2: Convert to fraction form
    11,670.48/17,459.64 = 9,017.28/x
  3. Step 3: Cross multiply
    11,670.48x = 17,459.64 × 9,017.28
  4. Step 4: Simplify right side
    11,670.48x = 157,438,462.58
  5. Step 5: Solve for x
    x = 157,438,462.58/11,670.48
  6. Step 6: Final answer
    x = 13,490.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.