Home / 15,551.46-21,460.82-8,477.87

Finding the Fourth Proportional to 15,551.46, 21,460.82 and 8,477.87

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Solution

The fourth proportional to 15,551.46, 21,460.82 and 8,477.87 is: 11,699.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.46 : 21,460.82 = 8,477.87 : x
  2. Step 2: Convert to fraction form
    15,551.46/21,460.82 = 8,477.87/x
  3. Step 3: Cross multiply
    15,551.46x = 21,460.82 × 8,477.87
  4. Step 4: Simplify right side
    15,551.46x = 181,941,892.36
  5. Step 5: Solve for x
    x = 181,941,892.36/15,551.46
  6. Step 6: Final answer
    x = 11,699.34

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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.