Home / 18,621.77-25,701.12-13,602.60

Finding the Fourth Proportional to 18,621.77, 25,701.12 and 13,602.60

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Solution

The fourth proportional to 18,621.77, 25,701.12 and 13,602.60 is: 18,773.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.77 : 25,701.12 = 13,602.60 : x
  2. Step 2: Convert to fraction form
    18,621.77/25,701.12 = 13,602.60/x
  3. Step 3: Cross multiply
    18,621.77x = 25,701.12 × 13,602.60
  4. Step 4: Simplify right side
    18,621.77x = 349,602,054.91
  5. Step 5: Solve for x
    x = 349,602,054.91/18,621.77
  6. Step 6: Final answer
    x = 18,773.84

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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.