Home / 10,327.40-15,491.10-6,828.20

Finding the Fourth Proportional to 10,327.40, 15,491.10 and 6,828.20

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Solution

The fourth proportional to 10,327.40, 15,491.10 and 6,828.20 is: 10,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,327.40 : 15,491.10 = 6,828.20 : x
  2. Step 2: Convert to fraction form
    10,327.40/15,491.10 = 6,828.20/x
  3. Step 3: Cross multiply
    10,327.40x = 15,491.10 × 6,828.20
  4. Step 4: Simplify right side
    10,327.40x = 105,776,329.02
  5. Step 5: Solve for x
    x = 105,776,329.02/10,327.40
  6. Step 6: Final answer
    x = 10,242.30

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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.