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Finding the Fourth Proportional to 9,670.89, 14,508.63 and 6,890.70

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Solution

The fourth proportional to 9,670.89, 14,508.63 and 6,890.70 is: 10,337.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,670.89 : 14,508.63 = 6,890.70 : x
  2. Step 2: Convert to fraction form
    9,670.89/14,508.63 = 6,890.70/x
  3. Step 3: Cross multiply
    9,670.89x = 14,508.63 × 6,890.70
  4. Step 4: Simplify right side
    9,670.89x = 99,974,616.74
  5. Step 5: Solve for x
    x = 99,974,616.74/9,670.89
  6. Step 6: Final answer
    x = 10,337.69

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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.