Home / 14,428.48-19,911.44-8,460.32

Finding the Fourth Proportional to 14,428.48, 19,911.44 and 8,460.32

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Solution

The fourth proportional to 14,428.48, 19,911.44 and 8,460.32 is: 11,675.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.48 : 19,911.44 = 8,460.32 : x
  2. Step 2: Convert to fraction form
    14,428.48/19,911.44 = 8,460.32/x
  3. Step 3: Cross multiply
    14,428.48x = 19,911.44 × 8,460.32
  4. Step 4: Simplify right side
    14,428.48x = 168,457,154.06
  5. Step 5: Solve for x
    x = 168,457,154.06/14,428.48
  6. Step 6: Final answer
    x = 11,675.32

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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.