Home / 9,943.80-13,710.30-7,290.12

Finding the Fourth Proportional to 9,943.80, 13,710.30 and 7,290.12

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Solution

The fourth proportional to 9,943.80, 13,710.30 and 7,290.12 is: 10,051.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,943.80 : 13,710.30 = 7,290.12 : x
  2. Step 2: Convert to fraction form
    9,943.80/13,710.30 = 7,290.12/x
  3. Step 3: Cross multiply
    9,943.80x = 13,710.30 × 7,290.12
  4. Step 4: Simplify right side
    9,943.80x = 99,949,732.24
  5. Step 5: Solve for x
    x = 99,949,732.24/9,943.80
  6. Step 6: Final answer
    x = 10,051.46

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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.