Home / 15,394.37-21,244.23-8,320.79

Finding the Fourth Proportional to 15,394.37, 21,244.23 and 8,320.79

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Solution

The fourth proportional to 15,394.37, 21,244.23 and 8,320.79 is: 11,482.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,394.37 : 21,244.23 = 8,320.79 : x
  2. Step 2: Convert to fraction form
    15,394.37/21,244.23 = 8,320.79/x
  3. Step 3: Cross multiply
    15,394.37x = 21,244.23 × 8,320.79
  4. Step 4: Simplify right side
    15,394.37x = 176,768,628.72
  5. Step 5: Solve for x
    x = 176,768,628.72/15,394.37
  6. Step 6: Final answer
    x = 11,482.68

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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.