Home / 13,980.10-19,292.54-8,011.88

Finding the Fourth Proportional to 13,980.10, 19,292.54 and 8,011.88

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Solution

The fourth proportional to 13,980.10, 19,292.54 and 8,011.88 is: 11,056.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.10 : 19,292.54 = 8,011.88 : x
  2. Step 2: Convert to fraction form
    13,980.10/19,292.54 = 8,011.88/x
  3. Step 3: Cross multiply
    13,980.10x = 19,292.54 × 8,011.88
  4. Step 4: Simplify right side
    13,980.10x = 154,569,515.38
  5. Step 5: Solve for x
    x = 154,569,515.38/13,980.10
  6. Step 6: Final answer
    x = 11,056.40

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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.