Home / 14,285.41-21,428.11-6,488.75

Finding the Fourth Proportional to 14,285.41, 21,428.11 and 6,488.75

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Solution

The fourth proportional to 14,285.41, 21,428.11 and 6,488.75 is: 9,733.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,285.41 : 21,428.11 = 6,488.75 : x
  2. Step 2: Convert to fraction form
    14,285.41/21,428.11 = 6,488.75/x
  3. Step 3: Cross multiply
    14,285.41x = 21,428.11 × 6,488.75
  4. Step 4: Simplify right side
    14,285.41x = 139,041,648.76
  5. Step 5: Solve for x
    x = 139,041,648.76/14,285.41
  6. Step 6: Final answer
    x = 9,733.12

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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.