Home / 18,454.30-27,681.48-5,303.61

Finding the Fourth Proportional to 18,454.30, 27,681.48 and 5,303.61

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Solution

The fourth proportional to 18,454.30, 27,681.48 and 5,303.61 is: 7,955.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,454.30 : 27,681.48 = 5,303.61 : x
  2. Step 2: Convert to fraction form
    18,454.30/27,681.48 = 5,303.61/x
  3. Step 3: Cross multiply
    18,454.30x = 27,681.48 × 5,303.61
  4. Step 4: Simplify right side
    18,454.30x = 146,811,774.14
  5. Step 5: Solve for x
    x = 146,811,774.14/18,454.30
  6. Step 6: Final answer
    x = 7,955.42

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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.