Home / 11,525.74-15,905.88-6,490.06

Finding the Fourth Proportional to 11,525.74, 15,905.88 and 6,490.06

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Solution

The fourth proportional to 11,525.74, 15,905.88 and 6,490.06 is: 8,956.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,525.74 : 15,905.88 = 6,490.06 : x
  2. Step 2: Convert to fraction form
    11,525.74/15,905.88 = 6,490.06/x
  3. Step 3: Cross multiply
    11,525.74x = 15,905.88 × 6,490.06
  4. Step 4: Simplify right side
    11,525.74x = 103,230,075.79
  5. Step 5: Solve for x
    x = 103,230,075.79/11,525.74
  6. Step 6: Final answer
    x = 8,956.48

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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.