Home / 7,849.04-10,821.20-6,725.16

Finding the Fourth Proportional to 7,849.04, 10,821.20 and 6,725.16

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Solution

The fourth proportional to 7,849.04, 10,821.20 and 6,725.16 is: 9,271.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,849.04 : 10,821.20 = 6,725.16 : x
  2. Step 2: Convert to fraction form
    7,849.04/10,821.20 = 6,725.16/x
  3. Step 3: Cross multiply
    7,849.04x = 10,821.20 × 6,725.16
  4. Step 4: Simplify right side
    7,849.04x = 72,774,267.77
  5. Step 5: Solve for x
    x = 72,774,267.77/7,849.04
  6. Step 6: Final answer
    x = 9,271.75

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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.