Home / 19,587.18-29,378.48-6,436.32

Finding the Fourth Proportional to 19,587.18, 29,378.48 and 6,436.32

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Solution

The fourth proportional to 19,587.18, 29,378.48 and 6,436.32 is: 9,653.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.18 : 29,378.48 = 6,436.32 : x
  2. Step 2: Convert to fraction form
    19,587.18/29,378.48 = 6,436.32/x
  3. Step 3: Cross multiply
    19,587.18x = 29,378.48 × 6,436.32
  4. Step 4: Simplify right side
    19,587.18x = 189,089,266.21
  5. Step 5: Solve for x
    x = 189,089,266.21/19,587.18
  6. Step 6: Final answer
    x = 9,653.73

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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.