Home / 10,858.48-16,369.12-10,135.15

Finding the Fourth Proportional to 10,858.48, 16,369.12 and 10,135.15

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Solution

The fourth proportional to 10,858.48, 16,369.12 and 10,135.15 is: 15,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.48 : 16,369.12 = 10,135.15 : x
  2. Step 2: Convert to fraction form
    10,858.48/16,369.12 = 10,135.15/x
  3. Step 3: Cross multiply
    10,858.48x = 16,369.12 × 10,135.15
  4. Step 4: Simplify right side
    10,858.48x = 165,903,486.57
  5. Step 5: Solve for x
    x = 165,903,486.57/10,858.48
  6. Step 6: Final answer
    x = 15,278.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.