Home / 13,670.10-18,865.13-7,701.44

Finding the Fourth Proportional to 13,670.10, 18,865.13 and 7,701.44

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Solution

The fourth proportional to 13,670.10, 18,865.13 and 7,701.44 is: 10,628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.10 : 18,865.13 = 7,701.44 : x
  2. Step 2: Convert to fraction form
    13,670.10/18,865.13 = 7,701.44/x
  3. Step 3: Cross multiply
    13,670.10x = 18,865.13 × 7,701.44
  4. Step 4: Simplify right side
    13,670.10x = 145,288,533.95
  5. Step 5: Solve for x
    x = 145,288,533.95/13,670.10
  6. Step 6: Final answer
    x = 10,628.20

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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.