Home / 10,152.36-14,010.78-6,172.80

Finding the Fourth Proportional to 10,152.36, 14,010.78 and 6,172.80

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Solution

The fourth proportional to 10,152.36, 14,010.78 and 6,172.80 is: 8,518.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,152.36 : 14,010.78 = 6,172.80 : x
  2. Step 2: Convert to fraction form
    10,152.36/14,010.78 = 6,172.80/x
  3. Step 3: Cross multiply
    10,152.36x = 14,010.78 × 6,172.80
  4. Step 4: Simplify right side
    10,152.36x = 86,485,742.78
  5. Step 5: Solve for x
    x = 86,485,742.78/10,152.36
  6. Step 6: Final answer
    x = 8,518.78

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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.