Home / 18,071.76-27,108.40-6,386.16

Finding the Fourth Proportional to 18,071.76, 27,108.40 and 6,386.16

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Solution

The fourth proportional to 18,071.76, 27,108.40 and 6,386.16 is: 9,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,071.76 : 27,108.40 = 6,386.16 : x
  2. Step 2: Convert to fraction form
    18,071.76/27,108.40 = 6,386.16/x
  3. Step 3: Cross multiply
    18,071.76x = 27,108.40 × 6,386.16
  4. Step 4: Simplify right side
    18,071.76x = 173,118,579.74
  5. Step 5: Solve for x
    x = 173,118,579.74/18,071.76
  6. Step 6: Final answer
    x = 9,579.51

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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.