Home / 15,770.54-21,740.73-12,407.52

Finding the Fourth Proportional to 15,770.54, 21,740.73 and 12,407.52

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Solution

The fourth proportional to 15,770.54, 21,740.73 and 12,407.52 is: 17,104.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,770.54 : 21,740.73 = 12,407.52 : x
  2. Step 2: Convert to fraction form
    15,770.54/21,740.73 = 12,407.52/x
  3. Step 3: Cross multiply
    15,770.54x = 21,740.73 × 12,407.52
  4. Step 4: Simplify right side
    15,770.54x = 269,748,542.29
  5. Step 5: Solve for x
    x = 269,748,542.29/15,770.54
  6. Step 6: Final answer
    x = 17,104.59

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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.