Home / 15,586.74-21,518.43-10,290.86

Finding the Fourth Proportional to 15,586.74, 21,518.43 and 10,290.86

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Solution

The fourth proportional to 15,586.74, 21,518.43 and 10,290.86 is: 14,207.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586.74 : 21,518.43 = 10,290.86 : x
  2. Step 2: Convert to fraction form
    15,586.74/21,518.43 = 10,290.86/x
  3. Step 3: Cross multiply
    15,586.74x = 21,518.43 × 10,290.86
  4. Step 4: Simplify right side
    15,586.74x = 221,443,042.96
  5. Step 5: Solve for x
    x = 221,443,042.96/15,586.74
  6. Step 6: Final answer
    x = 14,207.14

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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.