Home / 9,119.80-13,688.16-4,680.64

Finding the Fourth Proportional to 9,119.80, 13,688.16 and 4,680.64

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Solution

The fourth proportional to 9,119.80, 13,688.16 and 4,680.64 is: 7,025.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.80 : 13,688.16 = 4,680.64 : x
  2. Step 2: Convert to fraction form
    9,119.80/13,688.16 = 4,680.64/x
  3. Step 3: Cross multiply
    9,119.80x = 13,688.16 × 4,680.64
  4. Step 4: Simplify right side
    9,119.80x = 64,069,349.22
  5. Step 5: Solve for x
    x = 64,069,349.22/9,119.80
  6. Step 6: Final answer
    x = 7,025.30

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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.