Home / 6,547.20-9,806.40-5,817.60

Finding the Fourth Proportional to 6,547.20, 9,806.40 and 5,817.60

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Solution

The fourth proportional to 6,547.20, 9,806.40 and 5,817.60 is: 8,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,547.20 : 9,806.40 = 5,817.60 : x
  2. Step 2: Convert to fraction form
    6,547.20/9,806.40 = 5,817.60/x
  3. Step 3: Cross multiply
    6,547.20x = 9,806.40 × 5,817.60
  4. Step 4: Simplify right side
    6,547.20x = 57,049,712.64
  5. Step 5: Solve for x
    x = 57,049,712.64/6,547.20
  6. Step 6: Final answer
    x = 8,713.60

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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.