Home / 15,554.10-21,464.64-9,180.70

Finding the Fourth Proportional to 15,554.10, 21,464.64 and 9,180.70

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Solution

The fourth proportional to 15,554.10, 21,464.64 and 9,180.70 is: 12,669.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.10 : 21,464.64 = 9,180.70 : x
  2. Step 2: Convert to fraction form
    15,554.10/21,464.64 = 9,180.70/x
  3. Step 3: Cross multiply
    15,554.10x = 21,464.64 × 9,180.70
  4. Step 4: Simplify right side
    15,554.10x = 197,060,420.45
  5. Step 5: Solve for x
    x = 197,060,420.45/15,554.10
  6. Step 6: Final answer
    x = 12,669.36

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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.