Home / 13,991.60-19,309.29-7,703.98

Finding the Fourth Proportional to 13,991.60, 19,309.29 and 7,703.98

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Solution

The fourth proportional to 13,991.60, 19,309.29 and 7,703.98 is: 10,631.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.60 : 19,309.29 = 7,703.98 : x
  2. Step 2: Convert to fraction form
    13,991.60/19,309.29 = 7,703.98/x
  3. Step 3: Cross multiply
    13,991.60x = 19,309.29 × 7,703.98
  4. Step 4: Simplify right side
    13,991.60x = 148,758,306.81
  5. Step 5: Solve for x
    x = 148,758,306.81/13,991.60
  6. Step 6: Final answer
    x = 10,631.97

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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.