Home / 13,943.42-19,237.18-7,970.86

Finding the Fourth Proportional to 13,943.42, 19,237.18 and 7,970.86

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Solution

The fourth proportional to 13,943.42, 19,237.18 and 7,970.86 is: 10,997.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.42 : 19,237.18 = 7,970.86 : x
  2. Step 2: Convert to fraction form
    13,943.42/19,237.18 = 7,970.86/x
  3. Step 3: Cross multiply
    13,943.42x = 19,237.18 × 7,970.86
  4. Step 4: Simplify right side
    13,943.42x = 153,336,868.57
  5. Step 5: Solve for x
    x = 153,336,868.57/13,943.42
  6. Step 6: Final answer
    x = 10,997.08

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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.