Home / 11,106.39-16,578.55-9,705.10

Finding the Fourth Proportional to 11,106.39, 16,578.55 and 9,705.10

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Solution

The fourth proportional to 11,106.39, 16,578.55 and 9,705.10 is: 14,486.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.39 : 16,578.55 = 9,705.10 : x
  2. Step 2: Convert to fraction form
    11,106.39/16,578.55 = 9,705.10/x
  3. Step 3: Cross multiply
    11,106.39x = 16,578.55 × 9,705.10
  4. Step 4: Simplify right side
    11,106.39x = 160,896,485.61
  5. Step 5: Solve for x
    x = 160,896,485.61/11,106.39
  6. Step 6: Final answer
    x = 14,486.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.