Home / 15,054.85-20,776.06-11,271.34

Finding the Fourth Proportional to 15,054.85, 20,776.06 and 11,271.34

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Solution

The fourth proportional to 15,054.85, 20,776.06 and 11,271.34 is: 15,554.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054.85 : 20,776.06 = 11,271.34 : x
  2. Step 2: Convert to fraction form
    15,054.85/20,776.06 = 11,271.34/x
  3. Step 3: Cross multiply
    15,054.85x = 20,776.06 × 11,271.34
  4. Step 4: Simplify right side
    15,054.85x = 234,174,036.12
  5. Step 5: Solve for x
    x = 234,174,036.12/15,054.85
  6. Step 6: Final answer
    x = 15,554.72

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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.