Home / 13,970.95-19,279.13-8,003.00

Finding the Fourth Proportional to 13,970.95, 19,279.13 and 8,003.00

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Solution

The fourth proportional to 13,970.95, 19,279.13 and 8,003.00 is: 11,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.95 : 19,279.13 = 8,003.00 : x
  2. Step 2: Convert to fraction form
    13,970.95/19,279.13 = 8,003.00/x
  3. Step 3: Cross multiply
    13,970.95x = 19,279.13 × 8,003.00
  4. Step 4: Simplify right side
    13,970.95x = 154,290,945.60
  5. Step 5: Solve for x
    x = 154,290,945.60/13,970.95
  6. Step 6: Final answer
    x = 11,043.70

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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.