Home / 12,015.79-16,581.40-6,710.49

Finding the Fourth Proportional to 12,015.79, 16,581.40 and 6,710.49

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Solution

The fourth proportional to 12,015.79, 16,581.40 and 6,710.49 is: 9,260.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.79 : 16,581.40 = 6,710.49 : x
  2. Step 2: Convert to fraction form
    12,015.79/16,581.40 = 6,710.49/x
  3. Step 3: Cross multiply
    12,015.79x = 16,581.40 × 6,710.49
  4. Step 4: Simplify right side
    12,015.79x = 111,269,302.11
  5. Step 5: Solve for x
    x = 111,269,302.11/12,015.79
  6. Step 6: Final answer
    x = 9,260.26

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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.