Home / 19,412.55-26,780.88-12,335.17

Finding the Fourth Proportional to 19,412.55, 26,780.88 and 12,335.17

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Solution

The fourth proportional to 19,412.55, 26,780.88 and 12,335.17 is: 17,017.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,412.55 : 26,780.88 = 12,335.17 : x
  2. Step 2: Convert to fraction form
    19,412.55/26,780.88 = 12,335.17/x
  3. Step 3: Cross multiply
    19,412.55x = 26,780.88 × 12,335.17
  4. Step 4: Simplify right side
    19,412.55x = 330,346,707.55
  5. Step 5: Solve for x
    x = 330,346,707.55/19,412.55
  6. Step 6: Final answer
    x = 17,017.17

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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.