Home / 15,555.62-21,466.77-8,482.07

Finding the Fourth Proportional to 15,555.62, 21,466.77 and 8,482.07

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Solution

The fourth proportional to 15,555.62, 21,466.77 and 8,482.07 is: 11,705.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.62 : 21,466.77 = 8,482.07 : x
  2. Step 2: Convert to fraction form
    15,555.62/21,466.77 = 8,482.07/x
  3. Step 3: Cross multiply
    15,555.62x = 21,466.77 × 8,482.07
  4. Step 4: Simplify right side
    15,555.62x = 182,082,645.81
  5. Step 5: Solve for x
    x = 182,082,645.81/15,555.62
  6. Step 6: Final answer
    x = 11,705.26

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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.