Home / 10,172.40-14,042.94-7,762.60

Finding the Fourth Proportional to 10,172.40, 14,042.94 and 7,762.60

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Solution

The fourth proportional to 10,172.40, 14,042.94 and 7,762.60 is: 10,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,172.40 : 14,042.94 = 7,762.60 : x
  2. Step 2: Convert to fraction form
    10,172.40/14,042.94 = 7,762.60/x
  3. Step 3: Cross multiply
    10,172.40x = 14,042.94 × 7,762.60
  4. Step 4: Simplify right side
    10,172.40x = 109,009,779.98
  5. Step 5: Solve for x
    x = 109,009,779.98/10,172.40
  6. Step 6: Final answer
    x = 10,716.23

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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.