Home / 10,185.12-14,053.80-5,708.43

Finding the Fourth Proportional to 10,185.12, 14,053.80 and 5,708.43

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Solution

The fourth proportional to 10,185.12, 14,053.80 and 5,708.43 is: 7,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,185.12 : 14,053.80 = 5,708.43 : x
  2. Step 2: Convert to fraction form
    10,185.12/14,053.80 = 5,708.43/x
  3. Step 3: Cross multiply
    10,185.12x = 14,053.80 × 5,708.43
  4. Step 4: Simplify right side
    10,185.12x = 80,225,133.53
  5. Step 5: Solve for x
    x = 80,225,133.53/10,185.12
  6. Step 6: Final answer
    x = 7,876.70

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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.