Home / 14,131.40-21,200.81-4,270.95

Finding the Fourth Proportional to 14,131.40, 21,200.81 and 4,270.95

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Solution

The fourth proportional to 14,131.40, 21,200.81 and 4,270.95 is: 6,407.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,131.40 : 21,200.81 = 4,270.95 : x
  2. Step 2: Convert to fraction form
    14,131.40/21,200.81 = 4,270.95/x
  3. Step 3: Cross multiply
    14,131.40x = 21,200.81 × 4,270.95
  4. Step 4: Simplify right side
    14,131.40x = 90,547,578.11
  5. Step 5: Solve for x
    x = 90,547,578.11/14,131.40
  6. Step 6: Final answer
    x = 6,407.55

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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.