Home / 14,280.40-21,412.92-4,415.44

Finding the Fourth Proportional to 14,280.40, 21,412.92 and 4,415.44

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Solution

The fourth proportional to 14,280.40, 21,412.92 and 4,415.44 is: 6,620.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.40 : 21,412.92 = 4,415.44 : x
  2. Step 2: Convert to fraction form
    14,280.40/21,412.92 = 4,415.44/x
  3. Step 3: Cross multiply
    14,280.40x = 21,412.92 × 4,415.44
  4. Step 4: Simplify right side
    14,280.40x = 94,547,463.48
  5. Step 5: Solve for x
    x = 94,547,463.48/14,280.40
  6. Step 6: Final answer
    x = 6,620.79

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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.