Home / 10,358.06-14,289.56-6,999.64

Finding the Fourth Proportional to 10,358.06, 14,289.56 and 6,999.64

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Solution

The fourth proportional to 10,358.06, 14,289.56 and 6,999.64 is: 9,656.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,358.06 : 14,289.56 = 6,999.64 : x
  2. Step 2: Convert to fraction form
    10,358.06/14,289.56 = 6,999.64/x
  3. Step 3: Cross multiply
    10,358.06x = 14,289.56 × 6,999.64
  4. Step 4: Simplify right side
    10,358.06x = 100,021,775.76
  5. Step 5: Solve for x
    x = 100,021,775.76/10,358.06
  6. Step 6: Final answer
    x = 9,656.42

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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.