Home / 14,069.19-21,062.78-12,189.28

Finding the Fourth Proportional to 14,069.19, 21,062.78 and 12,189.28

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Solution

The fourth proportional to 14,069.19, 21,062.78 and 12,189.28 is: 18,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,069.19 : 21,062.78 = 12,189.28 : x
  2. Step 2: Convert to fraction form
    14,069.19/21,062.78 = 12,189.28/x
  3. Step 3: Cross multiply
    14,069.19x = 21,062.78 × 12,189.28
  4. Step 4: Simplify right side
    14,069.19x = 256,740,145.18
  5. Step 5: Solve for x
    x = 256,740,145.18/14,069.19
  6. Step 6: Final answer
    x = 18,248.40

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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.