Home / 8,889.16-13,314.30-5,415.88

Finding the Fourth Proportional to 8,889.16, 13,314.30 and 5,415.88

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Solution

The fourth proportional to 8,889.16, 13,314.30 and 5,415.88 is: 8,111.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.16 : 13,314.30 = 5,415.88 : x
  2. Step 2: Convert to fraction form
    8,889.16/13,314.30 = 5,415.88/x
  3. Step 3: Cross multiply
    8,889.16x = 13,314.30 × 5,415.88
  4. Step 4: Simplify right side
    8,889.16x = 72,108,651.08
  5. Step 5: Solve for x
    x = 72,108,651.08/8,889.16
  6. Step 6: Final answer
    x = 8,111.98

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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.