Home / 18,966.48-28,448.67-5,818.89

Finding the Fourth Proportional to 18,966.48, 28,448.67 and 5,818.89

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Solution

The fourth proportional to 18,966.48, 28,448.67 and 5,818.89 is: 8,728.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.48 : 28,448.67 = 5,818.89 : x
  2. Step 2: Convert to fraction form
    18,966.48/28,448.67 = 5,818.89/x
  3. Step 3: Cross multiply
    18,966.48x = 28,448.67 × 5,818.89
  4. Step 4: Simplify right side
    18,966.48x = 165,539,681.38
  5. Step 5: Solve for x
    x = 165,539,681.38/18,966.48
  6. Step 6: Final answer
    x = 8,728.01

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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.