Home / 15,551.27-21,460.97-8,477.69

Finding the Fourth Proportional to 15,551.27, 21,460.97 and 8,477.69

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Solution

The fourth proportional to 15,551.27, 21,460.97 and 8,477.69 is: 11,699.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.27 : 21,460.97 = 8,477.69 : x
  2. Step 2: Convert to fraction form
    15,551.27/21,460.97 = 8,477.69/x
  3. Step 3: Cross multiply
    15,551.27x = 21,460.97 × 8,477.69
  4. Step 4: Simplify right side
    15,551.27x = 181,939,301.07
  5. Step 5: Solve for x
    x = 181,939,301.07/15,551.27
  6. Step 6: Final answer
    x = 11,699.32

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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.