Home / 14,145.07-21,218.70-4,285.15

Finding the Fourth Proportional to 14,145.07, 21,218.70 and 4,285.15

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Solution

The fourth proportional to 14,145.07, 21,218.70 and 4,285.15 is: 6,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.07 : 21,218.70 = 4,285.15 : x
  2. Step 2: Convert to fraction form
    14,145.07/21,218.70 = 4,285.15/x
  3. Step 3: Cross multiply
    14,145.07x = 21,218.70 × 4,285.15
  4. Step 4: Simplify right side
    14,145.07x = 90,925,312.31
  5. Step 5: Solve for x
    x = 90,925,312.31/14,145.07
  6. Step 6: Final answer
    x = 6,428.06

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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.