Home / 13,257.59-19,885.35-7,707.39

Finding the Fourth Proportional to 13,257.59, 19,885.35 and 7,707.39

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Solution

The fourth proportional to 13,257.59, 19,885.35 and 7,707.39 is: 11,560.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.59 : 19,885.35 = 7,707.39 : x
  2. Step 2: Convert to fraction form
    13,257.59/19,885.35 = 7,707.39/x
  3. Step 3: Cross multiply
    13,257.59x = 19,885.35 × 7,707.39
  4. Step 4: Simplify right side
    13,257.59x = 153,264,147.74
  5. Step 5: Solve for x
    x = 153,264,147.74/13,257.59
  6. Step 6: Final answer
    x = 11,560.48

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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.