Home / 8,572.48-12,860.64-3,642.28

Finding the Fourth Proportional to 8,572.48, 12,860.64 and 3,642.28

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Solution

The fourth proportional to 8,572.48, 12,860.64 and 3,642.28 is: 5,464.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.48 : 12,860.64 = 3,642.28 : x
  2. Step 2: Convert to fraction form
    8,572.48/12,860.64 = 3,642.28/x
  3. Step 3: Cross multiply
    8,572.48x = 12,860.64 × 3,642.28
  4. Step 4: Simplify right side
    8,572.48x = 46,842,051.86
  5. Step 5: Solve for x
    x = 46,842,051.86/8,572.48
  6. Step 6: Final answer
    x = 5,464.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.