Home / 15,768.57-21,753.05-9,807.24

Finding the Fourth Proportional to 15,768.57, 21,753.05 and 9,807.24

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Solution

The fourth proportional to 15,768.57, 21,753.05 and 9,807.24 is: 13,529.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,768.57 : 21,753.05 = 9,807.24 : x
  2. Step 2: Convert to fraction form
    15,768.57/21,753.05 = 9,807.24/x
  3. Step 3: Cross multiply
    15,768.57x = 21,753.05 × 9,807.24
  4. Step 4: Simplify right side
    15,768.57x = 213,337,333.05
  5. Step 5: Solve for x
    x = 213,337,333.05/15,768.57
  6. Step 6: Final answer
    x = 13,529.28

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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.