Home / 15,551.22-21,460.69-8,477.65

Finding the Fourth Proportional to 15,551.22, 21,460.69 and 8,477.65

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Solution

The fourth proportional to 15,551.22, 21,460.69 and 8,477.65 is: 11,699.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.22 : 21,460.69 = 8,477.65 : x
  2. Step 2: Convert to fraction form
    15,551.22/21,460.69 = 8,477.65/x
  3. Step 3: Cross multiply
    15,551.22x = 21,460.69 × 8,477.65
  4. Step 4: Simplify right side
    15,551.22x = 181,936,218.58
  5. Step 5: Solve for x
    x = 181,936,218.58/15,551.22
  6. Step 6: Final answer
    x = 11,699.16

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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.