Home / 11,555.48-15,942.60-6,519.08

Finding the Fourth Proportional to 11,555.48, 15,942.60 and 6,519.08

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Solution

The fourth proportional to 11,555.48, 15,942.60 and 6,519.08 is: 8,994.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,555.48 : 15,942.60 = 6,519.08 : x
  2. Step 2: Convert to fraction form
    11,555.48/15,942.60 = 6,519.08/x
  3. Step 3: Cross multiply
    11,555.48x = 15,942.60 × 6,519.08
  4. Step 4: Simplify right side
    11,555.48x = 103,931,084.81
  5. Step 5: Solve for x
    x = 103,931,084.81/11,555.48
  6. Step 6: Final answer
    x = 8,994.09

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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.