Home / 13,297.86-18,345.90-7,630.56

Finding the Fourth Proportional to 13,297.86, 18,345.90 and 7,630.56

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Solution

The fourth proportional to 13,297.86, 18,345.90 and 7,630.56 is: 10,527.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.86 : 18,345.90 = 7,630.56 : x
  2. Step 2: Convert to fraction form
    13,297.86/18,345.90 = 7,630.56/x
  3. Step 3: Cross multiply
    13,297.86x = 18,345.90 × 7,630.56
  4. Step 4: Simplify right side
    13,297.86x = 139,989,393.29
  5. Step 5: Solve for x
    x = 139,989,393.29/13,297.86
  6. Step 6: Final answer
    x = 10,527.22

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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.