Home / 15,457.96-21,331.96-8,384.37

Finding the Fourth Proportional to 15,457.96, 21,331.96 and 8,384.37

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Solution

The fourth proportional to 15,457.96, 21,331.96 and 8,384.37 is: 11,570.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,457.96 : 21,331.96 = 8,384.37 : x
  2. Step 2: Convert to fraction form
    15,457.96/21,331.96 = 8,384.37/x
  3. Step 3: Cross multiply
    15,457.96x = 21,331.96 × 8,384.37
  4. Step 4: Simplify right side
    15,457.96x = 178,855,045.47
  5. Step 5: Solve for x
    x = 178,855,045.47/15,457.96
  6. Step 6: Final answer
    x = 11,570.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.