Home / 10,443.90-15,637.60-7,649.40

Finding the Fourth Proportional to 10,443.90, 15,637.60 and 7,649.40

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Solution

The fourth proportional to 10,443.90, 15,637.60 and 7,649.40 is: 11,453.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,443.90 : 15,637.60 = 7,649.40 : x
  2. Step 2: Convert to fraction form
    10,443.90/15,637.60 = 7,649.40/x
  3. Step 3: Cross multiply
    10,443.90x = 15,637.60 × 7,649.40
  4. Step 4: Simplify right side
    10,443.90x = 119,618,257.44
  5. Step 5: Solve for x
    x = 119,618,257.44/10,443.90
  6. Step 6: Final answer
    x = 11,453.41

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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.