Home / 13,772.07-20,670.08-7,537.77

Finding the Fourth Proportional to 13,772.07, 20,670.08 and 7,537.77

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Solution

The fourth proportional to 13,772.07, 20,670.08 and 7,537.77 is: 11,313.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.07 : 20,670.08 = 7,537.77 : x
  2. Step 2: Convert to fraction form
    13,772.07/20,670.08 = 7,537.77/x
  3. Step 3: Cross multiply
    13,772.07x = 20,670.08 × 7,537.77
  4. Step 4: Simplify right side
    13,772.07x = 155,806,271.23
  5. Step 5: Solve for x
    x = 155,806,271.23/13,772.07
  6. Step 6: Final answer
    x = 11,313.21

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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.