Home / 7,887.35-11,828.59-2,621.24

Finding the Fourth Proportional to 7,887.35, 11,828.59 and 2,621.24

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Solution

The fourth proportional to 7,887.35, 11,828.59 and 2,621.24 is: 3,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.35 : 11,828.59 = 2,621.24 : x
  2. Step 2: Convert to fraction form
    7,887.35/11,828.59 = 2,621.24/x
  3. Step 3: Cross multiply
    7,887.35x = 11,828.59 × 2,621.24
  4. Step 4: Simplify right side
    7,887.35x = 31,005,573.25
  5. Step 5: Solve for x
    x = 31,005,573.25/7,887.35
  6. Step 6: Final answer
    x = 3,931.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.