Home / 19,686.54-29,460.45-12,294.48

Finding the Fourth Proportional to 19,686.54, 29,460.45 and 12,294.48

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Solution

The fourth proportional to 19,686.54, 29,460.45 and 12,294.48 is: 18,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,686.54 : 29,460.45 = 12,294.48 : x
  2. Step 2: Convert to fraction form
    19,686.54/29,460.45 = 12,294.48/x
  3. Step 3: Cross multiply
    19,686.54x = 29,460.45 × 12,294.48
  4. Step 4: Simplify right side
    19,686.54x = 362,200,913.32
  5. Step 5: Solve for x
    x = 362,200,913.32/19,686.54
  6. Step 6: Final answer
    x = 18,398.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.