Home / 14,218.79-19,621.79-7,845.44

Finding the Fourth Proportional to 14,218.79, 19,621.79 and 7,845.44

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Solution

The fourth proportional to 14,218.79, 19,621.79 and 7,845.44 is: 10,826.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.79 : 19,621.79 = 7,845.44 : x
  2. Step 2: Convert to fraction form
    14,218.79/19,621.79 = 7,845.44/x
  3. Step 3: Cross multiply
    14,218.79x = 19,621.79 × 7,845.44
  4. Step 4: Simplify right side
    14,218.79x = 153,941,478.03
  5. Step 5: Solve for x
    x = 153,941,478.03/14,218.79
  6. Step 6: Final answer
    x = 10,826.63

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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.