Home / 13,795.12-19,035-8,689.84

Finding the Fourth Proportional to 13,795.12, 19,035 and 8,689.84

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Solution

The fourth proportional to 13,795.12, 19,035 and 8,689.84 is: 11,990.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.12 : 19,035 = 8,689.84 : x
  2. Step 2: Convert to fraction form
    13,795.12/19,035 = 8,689.84/x
  3. Step 3: Cross multiply
    13,795.12x = 19,035 × 8,689.84
  4. Step 4: Simplify right side
    13,795.12x = 165,411,104.40
  5. Step 5: Solve for x
    x = 165,411,104.40/13,795.12
  6. Step 6: Final answer
    x = 11,990.55

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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.