Home / 14,964.12-20,647.47-11,378.10

Finding the Fourth Proportional to 14,964.12, 20,647.47 and 11,378.10

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Solution

The fourth proportional to 14,964.12, 20,647.47 and 11,378.10 is: 15,699.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,964.12 : 20,647.47 = 11,378.10 : x
  2. Step 2: Convert to fraction form
    14,964.12/20,647.47 = 11,378.10/x
  3. Step 3: Cross multiply
    14,964.12x = 20,647.47 × 11,378.10
  4. Step 4: Simplify right side
    14,964.12x = 234,928,978.41
  5. Step 5: Solve for x
    x = 234,928,978.41/14,964.12
  6. Step 6: Final answer
    x = 15,699.49

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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.