Home / 19,581.18-29,373.12-7,894.50

Finding the Fourth Proportional to 19,581.18, 29,373.12 and 7,894.50

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Solution

The fourth proportional to 19,581.18, 29,373.12 and 7,894.50 is: 11,842.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,581.18 : 29,373.12 = 7,894.50 : x
  2. Step 2: Convert to fraction form
    19,581.18/29,373.12 = 7,894.50/x
  3. Step 3: Cross multiply
    19,581.18x = 29,373.12 × 7,894.50
  4. Step 4: Simplify right side
    19,581.18x = 231,886,095.84
  5. Step 5: Solve for x
    x = 231,886,095.84/19,581.18
  6. Step 6: Final answer
    x = 11,842.29

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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.