Home / 11,312.29-16,936.78-8,530.26

Finding the Fourth Proportional to 11,312.29, 16,936.78 and 8,530.26

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Solution

The fourth proportional to 11,312.29, 16,936.78 and 8,530.26 is: 12,771.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.29 : 16,936.78 = 8,530.26 : x
  2. Step 2: Convert to fraction form
    11,312.29/16,936.78 = 8,530.26/x
  3. Step 3: Cross multiply
    11,312.29x = 16,936.78 × 8,530.26
  4. Step 4: Simplify right side
    11,312.29x = 144,475,009.63
  5. Step 5: Solve for x
    x = 144,475,009.63/11,312.29
  6. Step 6: Final answer
    x = 12,771.51

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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.