Home / 13,769.19-18,999.16-7,799.63

Finding the Fourth Proportional to 13,769.19, 18,999.16 and 7,799.63

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Solution

The fourth proportional to 13,769.19, 18,999.16 and 7,799.63 is: 10,762.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.19 : 18,999.16 = 7,799.63 : x
  2. Step 2: Convert to fraction form
    13,769.19/18,999.16 = 7,799.63/x
  3. Step 3: Cross multiply
    13,769.19x = 18,999.16 × 7,799.63
  4. Step 4: Simplify right side
    13,769.19x = 148,186,303.82
  5. Step 5: Solve for x
    x = 148,186,303.82/13,769.19
  6. Step 6: Final answer
    x = 10,762.17

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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.