Home / 14,240.81-21,363.95-6,449.63

Finding the Fourth Proportional to 14,240.81, 21,363.95 and 6,449.63

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Solution

The fourth proportional to 14,240.81, 21,363.95 and 6,449.63 is: 9,675.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,240.81 : 21,363.95 = 6,449.63 : x
  2. Step 2: Convert to fraction form
    14,240.81/21,363.95 = 6,449.63/x
  3. Step 3: Cross multiply
    14,240.81x = 21,363.95 × 6,449.63
  4. Step 4: Simplify right side
    14,240.81x = 137,789,482.14
  5. Step 5: Solve for x
    x = 137,789,482.14/14,240.81
  6. Step 6: Final answer
    x = 9,675.68

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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.