Home / 15,486.88-21,363.60-10,762.96

Finding the Fourth Proportional to 15,486.88, 21,363.60 and 10,762.96

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Solution

The fourth proportional to 15,486.88, 21,363.60 and 10,762.96 is: 14,847.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,486.88 : 21,363.60 = 10,762.96 : x
  2. Step 2: Convert to fraction form
    15,486.88/21,363.60 = 10,762.96/x
  3. Step 3: Cross multiply
    15,486.88x = 21,363.60 × 10,762.96
  4. Step 4: Simplify right side
    15,486.88x = 229,935,572.26
  5. Step 5: Solve for x
    x = 229,935,572.26/15,486.88
  6. Step 6: Final answer
    x = 14,847.12

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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.