Home / 13,971.55-19,288.70-9,262.21

Finding the Fourth Proportional to 13,971.55, 19,288.70 and 9,262.21

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Solution

The fourth proportional to 13,971.55, 19,288.70 and 9,262.21 is: 12,787.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.55 : 19,288.70 = 9,262.21 : x
  2. Step 2: Convert to fraction form
    13,971.55/19,288.70 = 9,262.21/x
  3. Step 3: Cross multiply
    13,971.55x = 19,288.70 × 9,262.21
  4. Step 4: Simplify right side
    13,971.55x = 178,655,916.74
  5. Step 5: Solve for x
    x = 178,655,916.74/13,971.55
  6. Step 6: Final answer
    x = 12,787.13

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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.