Home / 13,328.93-18,393.95-7,360.85

Finding the Fourth Proportional to 13,328.93, 18,393.95 and 7,360.85

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Solution

The fourth proportional to 13,328.93, 18,393.95 and 7,360.85 is: 10,157.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.93 : 18,393.95 = 7,360.85 : x
  2. Step 2: Convert to fraction form
    13,328.93/18,393.95 = 7,360.85/x
  3. Step 3: Cross multiply
    13,328.93x = 18,393.95 × 7,360.85
  4. Step 4: Simplify right side
    13,328.93x = 135,395,106.86
  5. Step 5: Solve for x
    x = 135,395,106.86/13,328.93
  6. Step 6: Final answer
    x = 10,157.99

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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.