Home / 15,581.98-21,486.76-10,270

Finding the Fourth Proportional to 15,581.98, 21,486.76 and 10,270

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Solution

The fourth proportional to 15,581.98, 21,486.76 and 10,270 is: 14,161.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.98 : 21,486.76 = 10,270 : x
  2. Step 2: Convert to fraction form
    15,581.98/21,486.76 = 10,270/x
  3. Step 3: Cross multiply
    15,581.98x = 21,486.76 × 10,270
  4. Step 4: Simplify right side
    15,581.98x = 220,669,025.20
  5. Step 5: Solve for x
    x = 220,669,025.20/15,581.98
  6. Step 6: Final answer
    x = 14,161.81

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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.