Home / 14,091.47-21,130.97-4,228.85

Finding the Fourth Proportional to 14,091.47, 21,130.97 and 4,228.85

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Solution

The fourth proportional to 14,091.47, 21,130.97 and 4,228.85 is: 6,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.47 : 21,130.97 = 4,228.85 : x
  2. Step 2: Convert to fraction form
    14,091.47/21,130.97 = 4,228.85/x
  3. Step 3: Cross multiply
    14,091.47x = 21,130.97 × 4,228.85
  4. Step 4: Simplify right side
    14,091.47x = 89,359,681.34
  5. Step 5: Solve for x
    x = 89,359,681.34/14,091.47
  6. Step 6: Final answer
    x = 6,341.40

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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.