Home / 7,721.04-10,645.08-6,303.36

Finding the Fourth Proportional to 7,721.04, 10,645.08 and 6,303.36

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Solution

The fourth proportional to 7,721.04, 10,645.08 and 6,303.36 is: 8,690.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.04 : 10,645.08 = 6,303.36 : x
  2. Step 2: Convert to fraction form
    7,721.04/10,645.08 = 6,303.36/x
  3. Step 3: Cross multiply
    7,721.04x = 10,645.08 × 6,303.36
  4. Step 4: Simplify right side
    7,721.04x = 67,099,771.47
  5. Step 5: Solve for x
    x = 67,099,771.47/7,721.04
  6. Step 6: Final answer
    x = 8,690.51

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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.