Home / 7,389.99-10,203.63-5,290.47

Finding the Fourth Proportional to 7,389.99, 10,203.63 and 5,290.47

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Solution

The fourth proportional to 7,389.99, 10,203.63 and 5,290.47 is: 7,304.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.99 : 10,203.63 = 5,290.47 : x
  2. Step 2: Convert to fraction form
    7,389.99/10,203.63 = 5,290.47/x
  3. Step 3: Cross multiply
    7,389.99x = 10,203.63 × 5,290.47
  4. Step 4: Simplify right side
    7,389.99x = 53,981,998.41
  5. Step 5: Solve for x
    x = 53,981,998.41/7,389.99
  6. Step 6: Final answer
    x = 7,304.75

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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.