Home / 13,697.02-18,901.85-7,409.38

Finding the Fourth Proportional to 13,697.02, 18,901.85 and 7,409.38

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Solution

The fourth proportional to 13,697.02, 18,901.85 and 7,409.38 is: 10,224.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,697.02 : 18,901.85 = 7,409.38 : x
  2. Step 2: Convert to fraction form
    13,697.02/18,901.85 = 7,409.38/x
  3. Step 3: Cross multiply
    13,697.02x = 18,901.85 × 7,409.38
  4. Step 4: Simplify right side
    13,697.02x = 140,050,989.35
  5. Step 5: Solve for x
    x = 140,050,989.35/13,697.02
  6. Step 6: Final answer
    x = 10,224.92

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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.