Home / 7,685.36-11,509.55-4,388.46

Finding the Fourth Proportional to 7,685.36, 11,509.55 and 4,388.46

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Solution

The fourth proportional to 7,685.36, 11,509.55 and 4,388.46 is: 6,572.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.36 : 11,509.55 = 4,388.46 : x
  2. Step 2: Convert to fraction form
    7,685.36/11,509.55 = 4,388.46/x
  3. Step 3: Cross multiply
    7,685.36x = 11,509.55 × 4,388.46
  4. Step 4: Simplify right side
    7,685.36x = 50,509,199.79
  5. Step 5: Solve for x
    x = 50,509,199.79/7,685.36
  6. Step 6: Final answer
    x = 6,572.13

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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.