Home / 15,319.32-21,140.37-8,604.96

Finding the Fourth Proportional to 15,319.32, 21,140.37 and 8,604.96

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Solution

The fourth proportional to 15,319.32, 21,140.37 and 8,604.96 is: 11,874.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,319.32 : 21,140.37 = 8,604.96 : x
  2. Step 2: Convert to fraction form
    15,319.32/21,140.37 = 8,604.96/x
  3. Step 3: Cross multiply
    15,319.32x = 21,140.37 × 8,604.96
  4. Step 4: Simplify right side
    15,319.32x = 181,912,038.24
  5. Step 5: Solve for x
    x = 181,912,038.24/15,319.32
  6. Step 6: Final answer
    x = 11,874.68

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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.