Home / 11,416.40-17,124.36-5,260.40

Finding the Fourth Proportional to 11,416.40, 17,124.36 and 5,260.40

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Solution

The fourth proportional to 11,416.40, 17,124.36 and 5,260.40 is: 7,890.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,416.40 : 17,124.36 = 5,260.40 : x
  2. Step 2: Convert to fraction form
    11,416.40/17,124.36 = 5,260.40/x
  3. Step 3: Cross multiply
    11,416.40x = 17,124.36 × 5,260.40
  4. Step 4: Simplify right side
    11,416.40x = 90,080,983.34
  5. Step 5: Solve for x
    x = 90,080,983.34/11,416.40
  6. Step 6: Final answer
    x = 7,890.49

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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.