Home / 10,313.09-14,269.56-8,989.55

Finding the Fourth Proportional to 10,313.09, 14,269.56 and 8,989.55

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Solution

The fourth proportional to 10,313.09, 14,269.56 and 8,989.55 is: 12,438.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,313.09 : 14,269.56 = 8,989.55 : x
  2. Step 2: Convert to fraction form
    10,313.09/14,269.56 = 8,989.55/x
  3. Step 3: Cross multiply
    10,313.09x = 14,269.56 × 8,989.55
  4. Step 4: Simplify right side
    10,313.09x = 128,276,851.75
  5. Step 5: Solve for x
    x = 128,276,851.75/10,313.09
  6. Step 6: Final answer
    x = 12,438.26

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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.