Home / 15,620.18-21,564.76-10,330.34

Finding the Fourth Proportional to 15,620.18, 21,564.76 and 10,330.34

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Solution

The fourth proportional to 15,620.18, 21,564.76 and 10,330.34 is: 14,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,620.18 : 21,564.76 = 10,330.34 : x
  2. Step 2: Convert to fraction form
    15,620.18/21,564.76 = 10,330.34/x
  3. Step 3: Cross multiply
    15,620.18x = 21,564.76 × 10,330.34
  4. Step 4: Simplify right side
    15,620.18x = 222,771,302.82
  5. Step 5: Solve for x
    x = 222,771,302.82/15,620.18
  6. Step 6: Final answer
    x = 14,261.76

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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.