Home / 13,881.02-20,816.30-4,518.60

Finding the Fourth Proportional to 13,881.02, 20,816.30 and 4,518.60

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Solution

The fourth proportional to 13,881.02, 20,816.30 and 4,518.60 is: 6,776.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.02 : 20,816.30 = 4,518.60 : x
  2. Step 2: Convert to fraction form
    13,881.02/20,816.30 = 4,518.60/x
  3. Step 3: Cross multiply
    13,881.02x = 20,816.30 × 4,518.60
  4. Step 4: Simplify right side
    13,881.02x = 94,060,533.18
  5. Step 5: Solve for x
    x = 94,060,533.18/13,881.02
  6. Step 6: Final answer
    x = 6,776.20

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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.