Home / 12,518.23-17,277.06-7,140.64

Finding the Fourth Proportional to 12,518.23, 17,277.06 and 7,140.64

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Solution

The fourth proportional to 12,518.23, 17,277.06 and 7,140.64 is: 9,855.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.23 : 17,277.06 = 7,140.64 : x
  2. Step 2: Convert to fraction form
    12,518.23/17,277.06 = 7,140.64/x
  3. Step 3: Cross multiply
    12,518.23x = 17,277.06 × 7,140.64
  4. Step 4: Simplify right side
    12,518.23x = 123,369,265.72
  5. Step 5: Solve for x
    x = 123,369,265.72/12,518.23
  6. Step 6: Final answer
    x = 9,855.17

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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.