Home / 12,100.16-18,151.40-4,705.20

Finding the Fourth Proportional to 12,100.16, 18,151.40 and 4,705.20

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Solution

The fourth proportional to 12,100.16, 18,151.40 and 4,705.20 is: 7,058.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100.16 : 18,151.40 = 4,705.20 : x
  2. Step 2: Convert to fraction form
    12,100.16/18,151.40 = 4,705.20/x
  3. Step 3: Cross multiply
    12,100.16x = 18,151.40 × 4,705.20
  4. Step 4: Simplify right side
    12,100.16x = 85,405,967.28
  5. Step 5: Solve for x
    x = 85,405,967.28/12,100.16
  6. Step 6: Final answer
    x = 7,058.25

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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.