Home / 9,160.86-13,730.31-4,720.64

Finding the Fourth Proportional to 9,160.86, 13,730.31 and 4,720.64

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Solution

The fourth proportional to 9,160.86, 13,730.31 and 4,720.64 is: 7,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,160.86 : 13,730.31 = 4,720.64 : x
  2. Step 2: Convert to fraction form
    9,160.86/13,730.31 = 4,720.64/x
  3. Step 3: Cross multiply
    9,160.86x = 13,730.31 × 4,720.64
  4. Step 4: Simplify right side
    9,160.86x = 64,815,850.60
  5. Step 5: Solve for x
    x = 64,815,850.60/9,160.86
  6. Step 6: Final answer
    x = 7,075.30

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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.