Home / 15,555.24-21,466.62-9,590.81

Finding the Fourth Proportional to 15,555.24, 21,466.62 and 9,590.81

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Solution

The fourth proportional to 15,555.24, 21,466.62 and 9,590.81 is: 13,235.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.24 : 21,466.62 = 9,590.81 : x
  2. Step 2: Convert to fraction form
    15,555.24/21,466.62 = 9,590.81/x
  3. Step 3: Cross multiply
    15,555.24x = 21,466.62 × 9,590.81
  4. Step 4: Simplify right side
    15,555.24x = 205,882,166.43
  5. Step 5: Solve for x
    x = 205,882,166.43/15,555.24
  6. Step 6: Final answer
    x = 13,235.55

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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.