Home / 9,981.36-14,975.28-8,511.66

Finding the Fourth Proportional to 9,981.36, 14,975.28 and 8,511.66

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Solution

The fourth proportional to 9,981.36, 14,975.28 and 8,511.66 is: 12,770.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,981.36 : 14,975.28 = 8,511.66 : x
  2. Step 2: Convert to fraction form
    9,981.36/14,975.28 = 8,511.66/x
  3. Step 3: Cross multiply
    9,981.36x = 14,975.28 × 8,511.66
  4. Step 4: Simplify right side
    9,981.36x = 127,464,491.76
  5. Step 5: Solve for x
    x = 127,464,491.76/9,981.36
  6. Step 6: Final answer
    x = 12,770.25

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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.