Home / 10,364.09-14,313.30-7,142.29

Finding the Fourth Proportional to 10,364.09, 14,313.30 and 7,142.29

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Solution

The fourth proportional to 10,364.09, 14,313.30 and 7,142.29 is: 9,863.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,364.09 : 14,313.30 = 7,142.29 : x
  2. Step 2: Convert to fraction form
    10,364.09/14,313.30 = 7,142.29/x
  3. Step 3: Cross multiply
    10,364.09x = 14,313.30 × 7,142.29
  4. Step 4: Simplify right side
    10,364.09x = 102,229,703.67
  5. Step 5: Solve for x
    x = 102,229,703.67/10,364.09
  6. Step 6: Final answer
    x = 9,863.84

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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.