Home / 11,870.10-16,380.09-6,564.60

Finding the Fourth Proportional to 11,870.10, 16,380.09 and 6,564.60

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Solution

The fourth proportional to 11,870.10, 16,380.09 and 6,564.60 is: 9,058.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,870.10 : 16,380.09 = 6,564.60 : x
  2. Step 2: Convert to fraction form
    11,870.10/16,380.09 = 6,564.60/x
  3. Step 3: Cross multiply
    11,870.10x = 16,380.09 × 6,564.60
  4. Step 4: Simplify right side
    11,870.10x = 107,528,738.81
  5. Step 5: Solve for x
    x = 107,528,738.81/11,870.10
  6. Step 6: Final answer
    x = 9,058.79

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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.