Home / 12,534.21-18,807.45-8,860.05

Finding the Fourth Proportional to 12,534.21, 18,807.45 and 8,860.05

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Solution

The fourth proportional to 12,534.21, 18,807.45 and 8,860.05 is: 13,294.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,534.21 : 18,807.45 = 8,860.05 : x
  2. Step 2: Convert to fraction form
    12,534.21/18,807.45 = 8,860.05/x
  3. Step 3: Cross multiply
    12,534.21x = 18,807.45 × 8,860.05
  4. Step 4: Simplify right side
    12,534.21x = 166,634,947.37
  5. Step 5: Solve for x
    x = 166,634,947.37/12,534.21
  6. Step 6: Final answer
    x = 13,294.41

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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.