Home / 10,154.36-15,215.80-7,040.44

Finding the Fourth Proportional to 10,154.36, 15,215.80 and 7,040.44

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Solution

The fourth proportional to 10,154.36, 15,215.80 and 7,040.44 is: 10,549.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,154.36 : 15,215.80 = 7,040.44 : x
  2. Step 2: Convert to fraction form
    10,154.36/15,215.80 = 7,040.44/x
  3. Step 3: Cross multiply
    10,154.36x = 15,215.80 × 7,040.44
  4. Step 4: Simplify right side
    10,154.36x = 107,125,926.95
  5. Step 5: Solve for x
    x = 107,125,926.95/10,154.36
  6. Step 6: Final answer
    x = 10,549.75

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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.