Home / 19,005.40-28,508.10-9,641.80

Finding the Fourth Proportional to 19,005.40, 28,508.10 and 9,641.80

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Solution

The fourth proportional to 19,005.40, 28,508.10 and 9,641.80 is: 14,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.40 : 28,508.10 = 9,641.80 : x
  2. Step 2: Convert to fraction form
    19,005.40/28,508.10 = 9,641.80/x
  3. Step 3: Cross multiply
    19,005.40x = 28,508.10 × 9,641.80
  4. Step 4: Simplify right side
    19,005.40x = 274,869,398.58
  5. Step 5: Solve for x
    x = 274,869,398.58/19,005.40
  6. Step 6: Final answer
    x = 14,462.70

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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.