Home / 9,705.20-14,557.80-4,157.60

Finding the Fourth Proportional to 9,705.20, 14,557.80 and 4,157.60

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Solution

The fourth proportional to 9,705.20, 14,557.80 and 4,157.60 is: 6,236.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,705.20 : 14,557.80 = 4,157.60 : x
  2. Step 2: Convert to fraction form
    9,705.20/14,557.80 = 4,157.60/x
  3. Step 3: Cross multiply
    9,705.20x = 14,557.80 × 4,157.60
  4. Step 4: Simplify right side
    9,705.20x = 60,525,509.28
  5. Step 5: Solve for x
    x = 60,525,509.28/9,705.20
  6. Step 6: Final answer
    x = 6,236.40

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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.