Home / 13,507.55-18,650.30-8,730.32

Finding the Fourth Proportional to 13,507.55, 18,650.30 and 8,730.32

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Solution

The fourth proportional to 13,507.55, 18,650.30 and 8,730.32 is: 12,054.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.55 : 18,650.30 = 8,730.32 : x
  2. Step 2: Convert to fraction form
    13,507.55/18,650.30 = 8,730.32/x
  3. Step 3: Cross multiply
    13,507.55x = 18,650.30 × 8,730.32
  4. Step 4: Simplify right side
    13,507.55x = 162,823,122.81
  5. Step 5: Solve for x
    x = 162,823,122.81/13,507.55
  6. Step 6: Final answer
    x = 12,054.23

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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.