Home / 10,039.80-15,059.70-2,645.40

Finding the Fourth Proportional to 10,039.80, 15,059.70 and 2,645.40

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Solution

The fourth proportional to 10,039.80, 15,059.70 and 2,645.40 is: 3,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,039.80 : 15,059.70 = 2,645.40 : x
  2. Step 2: Convert to fraction form
    10,039.80/15,059.70 = 2,645.40/x
  3. Step 3: Cross multiply
    10,039.80x = 15,059.70 × 2,645.40
  4. Step 4: Simplify right side
    10,039.80x = 39,838,930.38
  5. Step 5: Solve for x
    x = 39,838,930.38/10,039.80
  6. Step 6: Final answer
    x = 3,968.10

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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.