Home / 18,973.16-28,458.90-6,494.30

Finding the Fourth Proportional to 18,973.16, 28,458.90 and 6,494.30

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Solution

The fourth proportional to 18,973.16, 28,458.90 and 6,494.30 is: 9,741.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,973.16 : 28,458.90 = 6,494.30 : x
  2. Step 2: Convert to fraction form
    18,973.16/28,458.90 = 6,494.30/x
  3. Step 3: Cross multiply
    18,973.16x = 28,458.90 × 6,494.30
  4. Step 4: Simplify right side
    18,973.16x = 184,820,672.95
  5. Step 5: Solve for x
    x = 184,820,672.95/18,973.16
  6. Step 6: Final answer
    x = 9,741.16

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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.