Home / 19,189.03-28,730.40-9,808.86

Finding the Fourth Proportional to 19,189.03, 28,730.40 and 9,808.86

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Solution

The fourth proportional to 19,189.03, 28,730.40 and 9,808.86 is: 14,686.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.03 : 28,730.40 = 9,808.86 : x
  2. Step 2: Convert to fraction form
    19,189.03/28,730.40 = 9,808.86/x
  3. Step 3: Cross multiply
    19,189.03x = 28,730.40 × 9,808.86
  4. Step 4: Simplify right side
    19,189.03x = 281,812,471.34
  5. Step 5: Solve for x
    x = 281,812,471.34/19,189.03
  6. Step 6: Final answer
    x = 14,686.12

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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.