Home / 13,046.61-18,004.28-7,078.17

Finding the Fourth Proportional to 13,046.61, 18,004.28 and 7,078.17

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Solution

The fourth proportional to 13,046.61, 18,004.28 and 7,078.17 is: 9,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,046.61 : 18,004.28 = 7,078.17 : x
  2. Step 2: Convert to fraction form
    13,046.61/18,004.28 = 7,078.17/x
  3. Step 3: Cross multiply
    13,046.61x = 18,004.28 × 7,078.17
  4. Step 4: Simplify right side
    13,046.61x = 127,437,319.18
  5. Step 5: Solve for x
    x = 127,437,319.18/13,046.61
  6. Step 6: Final answer
    x = 9,767.85

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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.