Home / 18,966.03-28,445.40-5,814.87

Finding the Fourth Proportional to 18,966.03, 28,445.40 and 5,814.87

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Solution

The fourth proportional to 18,966.03, 28,445.40 and 5,814.87 is: 8,721.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.03 : 28,445.40 = 5,814.87 : x
  2. Step 2: Convert to fraction form
    18,966.03/28,445.40 = 5,814.87/x
  3. Step 3: Cross multiply
    18,966.03x = 28,445.40 × 5,814.87
  4. Step 4: Simplify right side
    18,966.03x = 165,406,303.10
  5. Step 5: Solve for x
    x = 165,406,303.10/18,966.03
  6. Step 6: Final answer
    x = 8,721.19

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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.