Home / 7,746.12-10,689.69-4,209.36

Finding the Fourth Proportional to 7,746.12, 10,689.69 and 4,209.36

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Solution

The fourth proportional to 7,746.12, 10,689.69 and 4,209.36 is: 5,808.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,746.12 : 10,689.69 = 4,209.36 : x
  2. Step 2: Convert to fraction form
    7,746.12/10,689.69 = 4,209.36/x
  3. Step 3: Cross multiply
    7,746.12x = 10,689.69 × 4,209.36
  4. Step 4: Simplify right side
    7,746.12x = 44,996,753.50
  5. Step 5: Solve for x
    x = 44,996,753.50/7,746.12
  6. Step 6: Final answer
    x = 5,808.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.