Home / 8,985.06-13,478.40-3,438.18

Finding the Fourth Proportional to 8,985.06, 13,478.40 and 3,438.18

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Solution

The fourth proportional to 8,985.06, 13,478.40 and 3,438.18 is: 5,157.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.06 : 13,478.40 = 3,438.18 : x
  2. Step 2: Convert to fraction form
    8,985.06/13,478.40 = 3,438.18/x
  3. Step 3: Cross multiply
    8,985.06x = 13,478.40 × 3,438.18
  4. Step 4: Simplify right side
    8,985.06x = 46,341,165.31
  5. Step 5: Solve for x
    x = 46,341,165.31/8,985.06
  6. Step 6: Final answer
    x = 5,157.58

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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.