Home / 10,386.14-14,307.85-8,261.03

Finding the Fourth Proportional to 10,386.14, 14,307.85 and 8,261.03

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Solution

The fourth proportional to 10,386.14, 14,307.85 and 8,261.03 is: 11,380.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.14 : 14,307.85 = 8,261.03 : x
  2. Step 2: Convert to fraction form
    10,386.14/14,307.85 = 8,261.03/x
  3. Step 3: Cross multiply
    10,386.14x = 14,307.85 × 8,261.03
  4. Step 4: Simplify right side
    10,386.14x = 118,197,578.09
  5. Step 5: Solve for x
    x = 118,197,578.09/10,386.14
  6. Step 6: Final answer
    x = 11,380.32

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Double scale
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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.