Home / 10,386.14-14,328.54-6,611.37

Finding the Fourth Proportional to 10,386.14, 14,328.54 and 6,611.37

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Solution

The fourth proportional to 10,386.14, 14,328.54 and 6,611.37 is: 9,120.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.14 : 14,328.54 = 6,611.37 : x
  2. Step 2: Convert to fraction form
    10,386.14/14,328.54 = 6,611.37/x
  3. Step 3: Cross multiply
    10,386.14x = 14,328.54 × 6,611.37
  4. Step 4: Simplify right side
    10,386.14x = 94,731,279.50
  5. Step 5: Solve for x
    x = 94,731,279.50/10,386.14
  6. Step 6: Final answer
    x = 9,120.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.