Home / 13,939.34-19,237.45-7,972.16

Finding the Fourth Proportional to 13,939.34, 19,237.45 and 7,972.16

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Solution

The fourth proportional to 13,939.34, 19,237.45 and 7,972.16 is: 11,002.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.34 : 19,237.45 = 7,972.16 : x
  2. Step 2: Convert to fraction form
    13,939.34/19,237.45 = 7,972.16/x
  3. Step 3: Cross multiply
    13,939.34x = 19,237.45 × 7,972.16
  4. Step 4: Simplify right side
    13,939.34x = 153,364,056.91
  5. Step 5: Solve for x
    x = 153,364,056.91/13,939.34
  6. Step 6: Final answer
    x = 11,002.24

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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.