Home / 15,653.30-21,607.44-10,355.36

Finding the Fourth Proportional to 15,653.30, 21,607.44 and 10,355.36

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Solution

The fourth proportional to 15,653.30, 21,607.44 and 10,355.36 is: 14,294.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,653.30 : 21,607.44 = 10,355.36 : x
  2. Step 2: Convert to fraction form
    15,653.30/21,607.44 = 10,355.36/x
  3. Step 3: Cross multiply
    15,653.30x = 21,607.44 × 10,355.36
  4. Step 4: Simplify right side
    15,653.30x = 223,752,819.88
  5. Step 5: Solve for x
    x = 223,752,819.88/15,653.30
  6. Step 6: Final answer
    x = 14,294.29

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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.