Home / 19,611.57-29,417.34-7,924.79

Finding the Fourth Proportional to 19,611.57, 29,417.34 and 7,924.79

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Solution

The fourth proportional to 19,611.57, 29,417.34 and 7,924.79 is: 11,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.57 : 29,417.34 = 7,924.79 : x
  2. Step 2: Convert to fraction form
    19,611.57/29,417.34 = 7,924.79/x
  3. Step 3: Cross multiply
    19,611.57x = 29,417.34 × 7,924.79
  4. Step 4: Simplify right side
    19,611.57x = 233,126,094.77
  5. Step 5: Solve for x
    x = 233,126,094.77/19,611.57
  6. Step 6: Final answer
    x = 11,887.17

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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.