Home / 11,068.89-15,271.80-6,590.40

Finding the Fourth Proportional to 11,068.89, 15,271.80 and 6,590.40

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Solution

The fourth proportional to 11,068.89, 15,271.80 and 6,590.40 is: 9,092.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,068.89 : 15,271.80 = 6,590.40 : x
  2. Step 2: Convert to fraction form
    11,068.89/15,271.80 = 6,590.40/x
  3. Step 3: Cross multiply
    11,068.89x = 15,271.80 × 6,590.40
  4. Step 4: Simplify right side
    11,068.89x = 100,647,270.72
  5. Step 5: Solve for x
    x = 100,647,270.72/11,068.89
  6. Step 6: Final answer
    x = 9,092.81

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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.