Home / 12,637.86-18,943.44-4,735.20

Finding the Fourth Proportional to 12,637.86, 18,943.44 and 4,735.20

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Solution

The fourth proportional to 12,637.86, 18,943.44 and 4,735.20 is: 7,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.86 : 18,943.44 = 4,735.20 : x
  2. Step 2: Convert to fraction form
    12,637.86/18,943.44 = 4,735.20/x
  3. Step 3: Cross multiply
    12,637.86x = 18,943.44 × 4,735.20
  4. Step 4: Simplify right side
    12,637.86x = 89,700,977.09
  5. Step 5: Solve for x
    x = 89,700,977.09/12,637.86
  6. Step 6: Final answer
    x = 7,097.80

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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.