Home / 15,808.56-21,820.37-10,434.92

Finding the Fourth Proportional to 15,808.56, 21,820.37 and 10,434.92

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Solution

The fourth proportional to 15,808.56, 21,820.37 and 10,434.92 is: 14,403.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,808.56 : 21,820.37 = 10,434.92 : x
  2. Step 2: Convert to fraction form
    15,808.56/21,820.37 = 10,434.92/x
  3. Step 3: Cross multiply
    15,808.56x = 21,820.37 × 10,434.92
  4. Step 4: Simplify right side
    15,808.56x = 227,693,654.04
  5. Step 5: Solve for x
    x = 227,693,654.04/15,808.56
  6. Step 6: Final answer
    x = 14,403.19

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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.