Home / 10,858.25-14,985.10-6,078.65

Finding the Fourth Proportional to 10,858.25, 14,985.10 and 6,078.65

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Solution

The fourth proportional to 10,858.25, 14,985.10 and 6,078.65 is: 8,388.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.25 : 14,985.10 = 6,078.65 : x
  2. Step 2: Convert to fraction form
    10,858.25/14,985.10 = 6,078.65/x
  3. Step 3: Cross multiply
    10,858.25x = 14,985.10 × 6,078.65
  4. Step 4: Simplify right side
    10,858.25x = 91,089,110.79
  5. Step 5: Solve for x
    x = 91,089,110.79/10,858.25
  6. Step 6: Final answer
    x = 8,388.93

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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.