Home / 9,720.80-14,577.60-4,098.08

Finding the Fourth Proportional to 9,720.80, 14,577.60 and 4,098.08

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Solution

The fourth proportional to 9,720.80, 14,577.60 and 4,098.08 is: 6,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.80 : 14,577.60 = 4,098.08 : x
  2. Step 2: Convert to fraction form
    9,720.80/14,577.60 = 4,098.08/x
  3. Step 3: Cross multiply
    9,720.80x = 14,577.60 × 4,098.08
  4. Step 4: Simplify right side
    9,720.80x = 59,740,171.01
  5. Step 5: Solve for x
    x = 59,740,171.01/9,720.80
  6. Step 6: Final answer
    x = 6,145.60

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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.