Home / 10,431.80-14,395.88-5,716.07

Finding the Fourth Proportional to 10,431.80, 14,395.88 and 5,716.07

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Solution

The fourth proportional to 10,431.80, 14,395.88 and 5,716.07 is: 7,888.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.80 : 14,395.88 = 5,716.07 : x
  2. Step 2: Convert to fraction form
    10,431.80/14,395.88 = 5,716.07/x
  3. Step 3: Cross multiply
    10,431.80x = 14,395.88 × 5,716.07
  4. Step 4: Simplify right side
    10,431.80x = 82,287,908.07
  5. Step 5: Solve for x
    x = 82,287,908.07/10,431.80
  6. Step 6: Final answer
    x = 7,888.18

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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.