Home / 13,808.34-19,049.40-10,812.15

Finding the Fourth Proportional to 13,808.34, 19,049.40 and 10,812.15

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Solution

The fourth proportional to 13,808.34, 19,049.40 and 10,812.15 is: 14,915.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.34 : 19,049.40 = 10,812.15 : x
  2. Step 2: Convert to fraction form
    13,808.34/19,049.40 = 10,812.15/x
  3. Step 3: Cross multiply
    13,808.34x = 19,049.40 × 10,812.15
  4. Step 4: Simplify right side
    13,808.34x = 205,964,970.21
  5. Step 5: Solve for x
    x = 205,964,970.21/13,808.34
  6. Step 6: Final answer
    x = 14,915.98

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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.