Home / 18,854.65-28,288.05-5,708.35

Finding the Fourth Proportional to 18,854.65, 28,288.05 and 5,708.35

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Solution

The fourth proportional to 18,854.65, 28,288.05 and 5,708.35 is: 8,564.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,854.65 : 28,288.05 = 5,708.35 : x
  2. Step 2: Convert to fraction form
    18,854.65/28,288.05 = 5,708.35/x
  3. Step 3: Cross multiply
    18,854.65x = 28,288.05 × 5,708.35
  4. Step 4: Simplify right side
    18,854.65x = 161,478,090.22
  5. Step 5: Solve for x
    x = 161,478,090.22/18,854.65
  6. Step 6: Final answer
    x = 8,564.36

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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.