Home / 15,555.03-21,466.35-9,590.64

Finding the Fourth Proportional to 15,555.03, 21,466.35 and 9,590.64

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Solution

The fourth proportional to 15,555.03, 21,466.35 and 9,590.64 is: 13,235.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.03 : 21,466.35 = 9,590.64 : x
  2. Step 2: Convert to fraction form
    15,555.03/21,466.35 = 9,590.64/x
  3. Step 3: Cross multiply
    15,555.03x = 21,466.35 × 9,590.64
  4. Step 4: Simplify right side
    15,555.03x = 205,876,034.96
  5. Step 5: Solve for x
    x = 205,876,034.96/15,555.03
  6. Step 6: Final answer
    x = 13,235.34

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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.