Home / 7,389.58-10,201.38-5,707.21

Finding the Fourth Proportional to 7,389.58, 10,201.38 and 5,707.21

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Solution

The fourth proportional to 7,389.58, 10,201.38 and 5,707.21 is: 7,878.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.58 : 10,201.38 = 5,707.21 : x
  2. Step 2: Convert to fraction form
    7,389.58/10,201.38 = 5,707.21/x
  3. Step 3: Cross multiply
    7,389.58x = 10,201.38 × 5,707.21
  4. Step 4: Simplify right side
    7,389.58x = 58,221,417.95
  5. Step 5: Solve for x
    x = 58,221,417.95/7,389.58
  6. Step 6: Final answer
    x = 7,878.85

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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.