Home / 10,172.50-14,055.60-8,401.06

Finding the Fourth Proportional to 10,172.50, 14,055.60 and 8,401.06

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Solution

The fourth proportional to 10,172.50, 14,055.60 and 8,401.06 is: 11,607.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,172.50 : 14,055.60 = 8,401.06 : x
  2. Step 2: Convert to fraction form
    10,172.50/14,055.60 = 8,401.06/x
  3. Step 3: Cross multiply
    10,172.50x = 14,055.60 × 8,401.06
  4. Step 4: Simplify right side
    10,172.50x = 118,081,938.94
  5. Step 5: Solve for x
    x = 118,081,938.94/10,172.50
  6. Step 6: Final answer
    x = 11,607.96

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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.