Home / 7,070.16-9,745.68-5,386.24

Finding the Fourth Proportional to 7,070.16, 9,745.68 and 5,386.24

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Solution

The fourth proportional to 7,070.16, 9,745.68 and 5,386.24 is: 7,424.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.16 : 9,745.68 = 5,386.24 : x
  2. Step 2: Convert to fraction form
    7,070.16/9,745.68 = 5,386.24/x
  3. Step 3: Cross multiply
    7,070.16x = 9,745.68 × 5,386.24
  4. Step 4: Simplify right side
    7,070.16x = 52,492,571.44
  5. Step 5: Solve for x
    x = 52,492,571.44/7,070.16
  6. Step 6: Final answer
    x = 7,424.52

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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.