Home / 12,110.48-16,710.36-6,805.20

Finding the Fourth Proportional to 12,110.48, 16,710.36 and 6,805.20

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Solution

The fourth proportional to 12,110.48, 16,710.36 and 6,805.20 is: 9,389.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.48 : 16,710.36 = 6,805.20 : x
  2. Step 2: Convert to fraction form
    12,110.48/16,710.36 = 6,805.20/x
  3. Step 3: Cross multiply
    12,110.48x = 16,710.36 × 6,805.20
  4. Step 4: Simplify right side
    12,110.48x = 113,717,341.87
  5. Step 5: Solve for x
    x = 113,717,341.87/12,110.48
  6. Step 6: Final answer
    x = 9,389.99

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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.