Home / 13,880.34-19,126.53-9,892.98

Finding the Fourth Proportional to 13,880.34, 19,126.53 and 9,892.98

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Solution

The fourth proportional to 13,880.34, 19,126.53 and 9,892.98 is: 13,632.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.34 : 19,126.53 = 9,892.98 : x
  2. Step 2: Convert to fraction form
    13,880.34/19,126.53 = 9,892.98/x
  3. Step 3: Cross multiply
    13,880.34x = 19,126.53 × 9,892.98
  4. Step 4: Simplify right side
    13,880.34x = 189,218,378.76
  5. Step 5: Solve for x
    x = 189,218,378.76/13,880.34
  6. Step 6: Final answer
    x = 13,632.11

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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.