Home / 10,071.40-15,089.10-4,865.80

Finding the Fourth Proportional to 10,071.40, 15,089.10 and 4,865.80

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Solution

The fourth proportional to 10,071.40, 15,089.10 and 4,865.80 is: 7,290.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,071.40 : 15,089.10 = 4,865.80 : x
  2. Step 2: Convert to fraction form
    10,071.40/15,089.10 = 4,865.80/x
  3. Step 3: Cross multiply
    10,071.40x = 15,089.10 × 4,865.80
  4. Step 4: Simplify right side
    10,071.40x = 73,420,542.78
  5. Step 5: Solve for x
    x = 73,420,542.78/10,071.40
  6. Step 6: Final answer
    x = 7,290.00

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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.