Home / 14,117.57-21,159.26-7,870.94

Finding the Fourth Proportional to 14,117.57, 21,159.26 and 7,870.94

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Solution

The fourth proportional to 14,117.57, 21,159.26 and 7,870.94 is: 11,796.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.57 : 21,159.26 = 7,870.94 : x
  2. Step 2: Convert to fraction form
    14,117.57/21,159.26 = 7,870.94/x
  3. Step 3: Cross multiply
    14,117.57x = 21,159.26 × 7,870.94
  4. Step 4: Simplify right side
    14,117.57x = 166,543,279.45
  5. Step 5: Solve for x
    x = 166,543,279.45/14,117.57
  6. Step 6: Final answer
    x = 11,796.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.