Home / 9,409.20-14,113.80-4,727.40

Finding the Fourth Proportional to 9,409.20, 14,113.80 and 4,727.40

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Solution

The fourth proportional to 9,409.20, 14,113.80 and 4,727.40 is: 7,091.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,409.20 : 14,113.80 = 4,727.40 : x
  2. Step 2: Convert to fraction form
    9,409.20/14,113.80 = 4,727.40/x
  3. Step 3: Cross multiply
    9,409.20x = 14,113.80 × 4,727.40
  4. Step 4: Simplify right side
    9,409.20x = 66,721,578.12
  5. Step 5: Solve for x
    x = 66,721,578.12/9,409.20
  6. Step 6: Final answer
    x = 7,091.10

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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.