Home / 14,160.57-21,211.68-8,303.05

Finding the Fourth Proportional to 14,160.57, 21,211.68 and 8,303.05

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Solution

The fourth proportional to 14,160.57, 21,211.68 and 8,303.05 is: 12,437.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,160.57 : 21,211.68 = 8,303.05 : x
  2. Step 2: Convert to fraction form
    14,160.57/21,211.68 = 8,303.05/x
  3. Step 3: Cross multiply
    14,160.57x = 21,211.68 × 8,303.05
  4. Step 4: Simplify right side
    14,160.57x = 176,121,639.62
  5. Step 5: Solve for x
    x = 176,121,639.62/14,160.57
  6. Step 6: Final answer
    x = 12,437.47

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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.