Home / 19,653.48-29,512.40-12,909.96

Finding the Fourth Proportional to 19,653.48, 29,512.40 and 12,909.96

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Solution

The fourth proportional to 19,653.48, 29,512.40 and 12,909.96 is: 19,386.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,653.48 : 29,512.40 = 12,909.96 : x
  2. Step 2: Convert to fraction form
    19,653.48/29,512.40 = 12,909.96/x
  3. Step 3: Cross multiply
    19,653.48x = 29,512.40 × 12,909.96
  4. Step 4: Simplify right side
    19,653.48x = 381,003,903.50
  5. Step 5: Solve for x
    x = 381,003,903.50/19,653.48
  6. Step 6: Final answer
    x = 19,386.08

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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.