Home / 10,087.14-15,130.70-3,166.50

Finding the Fourth Proportional to 10,087.14, 15,130.70 and 3,166.50

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Solution

The fourth proportional to 10,087.14, 15,130.70 and 3,166.50 is: 4,749.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.14 : 15,130.70 = 3,166.50 : x
  2. Step 2: Convert to fraction form
    10,087.14/15,130.70 = 3,166.50/x
  3. Step 3: Cross multiply
    10,087.14x = 15,130.70 × 3,166.50
  4. Step 4: Simplify right side
    10,087.14x = 47,911,361.55
  5. Step 5: Solve for x
    x = 47,911,361.55/10,087.14
  6. Step 6: Final answer
    x = 4,749.75

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Double scale
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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.