Home / 14,139.51-21,206.52-4,276.47

Finding the Fourth Proportional to 14,139.51, 21,206.52 and 4,276.47

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Solution

The fourth proportional to 14,139.51, 21,206.52 and 4,276.47 is: 6,413.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.51 : 21,206.52 = 4,276.47 : x
  2. Step 2: Convert to fraction form
    14,139.51/21,206.52 = 4,276.47/x
  3. Step 3: Cross multiply
    14,139.51x = 21,206.52 × 4,276.47
  4. Step 4: Simplify right side
    14,139.51x = 90,689,046.58
  5. Step 5: Solve for x
    x = 90,689,046.58/14,139.51
  6. Step 6: Final answer
    x = 6,413.87

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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.