Home / 7,637.16-11,455.62-3,688.80

Finding the Fourth Proportional to 7,637.16, 11,455.62 and 3,688.80

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Solution

The fourth proportional to 7,637.16, 11,455.62 and 3,688.80 is: 5,533.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,637.16 : 11,455.62 = 3,688.80 : x
  2. Step 2: Convert to fraction form
    7,637.16/11,455.62 = 3,688.80/x
  3. Step 3: Cross multiply
    7,637.16x = 11,455.62 × 3,688.80
  4. Step 4: Simplify right side
    7,637.16x = 42,257,491.06
  5. Step 5: Solve for x
    x = 42,257,491.06/7,637.16
  6. Step 6: Final answer
    x = 5,533.14

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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.