Home / 14,781.60-20,398.58-9,476.40

Finding the Fourth Proportional to 14,781.60, 20,398.58 and 9,476.40

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Solution

The fourth proportional to 14,781.60, 20,398.58 and 9,476.40 is: 13,077.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.60 : 20,398.58 = 9,476.40 : x
  2. Step 2: Convert to fraction form
    14,781.60/20,398.58 = 9,476.40/x
  3. Step 3: Cross multiply
    14,781.60x = 20,398.58 × 9,476.40
  4. Step 4: Simplify right side
    14,781.60x = 193,305,103.51
  5. Step 5: Solve for x
    x = 193,305,103.51/14,781.60
  6. Step 6: Final answer
    x = 13,077.41

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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.