Home / 10,254.36-14,156.46-8,215.59

Finding the Fourth Proportional to 10,254.36, 14,156.46 and 8,215.59

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Solution

The fourth proportional to 10,254.36, 14,156.46 and 8,215.59 is: 11,341.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,254.36 : 14,156.46 = 8,215.59 : x
  2. Step 2: Convert to fraction form
    10,254.36/14,156.46 = 8,215.59/x
  3. Step 3: Cross multiply
    10,254.36x = 14,156.46 × 8,215.59
  4. Step 4: Simplify right side
    10,254.36x = 116,303,671.21
  5. Step 5: Solve for x
    x = 116,303,671.21/10,254.36
  6. Step 6: Final answer
    x = 11,341.88

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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.