Home / 19,788.40-27,308.04-10,713.86

Finding the Fourth Proportional to 19,788.40, 27,308.04 and 10,713.86

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Solution

The fourth proportional to 19,788.40, 27,308.04 and 10,713.86 is: 14,785.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.40 : 27,308.04 = 10,713.86 : x
  2. Step 2: Convert to fraction form
    19,788.40/27,308.04 = 10,713.86/x
  3. Step 3: Cross multiply
    19,788.40x = 27,308.04 × 10,713.86
  4. Step 4: Simplify right side
    19,788.40x = 292,574,327.32
  5. Step 5: Solve for x
    x = 292,574,327.32/19,788.40
  6. Step 6: Final answer
    x = 14,785.15

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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.