Home / 14,378.21-21,545.44-8,531.63

Finding the Fourth Proportional to 14,378.21, 21,545.44 and 8,531.63

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Solution

The fourth proportional to 14,378.21, 21,545.44 and 8,531.63 is: 12,784.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.21 : 21,545.44 = 8,531.63 : x
  2. Step 2: Convert to fraction form
    14,378.21/21,545.44 = 8,531.63/x
  3. Step 3: Cross multiply
    14,378.21x = 21,545.44 × 8,531.63
  4. Step 4: Simplify right side
    14,378.21x = 183,817,722.00
  5. Step 5: Solve for x
    x = 183,817,722.00/14,378.21
  6. Step 6: Final answer
    x = 12,784.47

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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.