Home / 12,533.18-18,656.55-12,346.34

Finding the Fourth Proportional to 12,533.18, 18,656.55 and 12,346.34

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Solution

The fourth proportional to 12,533.18, 18,656.55 and 12,346.34 is: 18,378.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,533.18 : 18,656.55 = 12,346.34 : x
  2. Step 2: Convert to fraction form
    12,533.18/18,656.55 = 12,346.34/x
  3. Step 3: Cross multiply
    12,533.18x = 18,656.55 × 12,346.34
  4. Step 4: Simplify right side
    12,533.18x = 230,340,016.24
  5. Step 5: Solve for x
    x = 230,340,016.24/12,533.18
  6. Step 6: Final answer
    x = 18,378.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.