Home / 14,290.86-21,428.43-4,427.40

Finding the Fourth Proportional to 14,290.86, 21,428.43 and 4,427.40

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Solution

The fourth proportional to 14,290.86, 21,428.43 and 4,427.40 is: 6,638.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,290.86 : 21,428.43 = 4,427.40 : x
  2. Step 2: Convert to fraction form
    14,290.86/21,428.43 = 4,427.40/x
  3. Step 3: Cross multiply
    14,290.86x = 21,428.43 × 4,427.40
  4. Step 4: Simplify right side
    14,290.86x = 94,872,230.98
  5. Step 5: Solve for x
    x = 94,872,230.98/14,290.86
  6. Step 6: Final answer
    x = 6,638.66

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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.