Home / 13,955.66-19,257.69-7,985.96

Finding the Fourth Proportional to 13,955.66, 19,257.69 and 7,985.96

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Solution

The fourth proportional to 13,955.66, 19,257.69 and 7,985.96 is: 11,019.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.66 : 19,257.69 = 7,985.96 : x
  2. Step 2: Convert to fraction form
    13,955.66/19,257.69 = 7,985.96/x
  3. Step 3: Cross multiply
    13,955.66x = 19,257.69 × 7,985.96
  4. Step 4: Simplify right side
    13,955.66x = 153,791,132.93
  5. Step 5: Solve for x
    x = 153,791,132.93/13,955.66
  6. Step 6: Final answer
    x = 11,019.98

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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.