Home / 18,948.48-28,416.96-5,802.72

Finding the Fourth Proportional to 18,948.48, 28,416.96 and 5,802.72

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Solution

The fourth proportional to 18,948.48, 28,416.96 and 5,802.72 is: 8,702.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.48 : 28,416.96 = 5,802.72 : x
  2. Step 2: Convert to fraction form
    18,948.48/28,416.96 = 5,802.72/x
  3. Step 3: Cross multiply
    18,948.48x = 28,416.96 × 5,802.72
  4. Step 4: Simplify right side
    18,948.48x = 164,895,662.13
  5. Step 5: Solve for x
    x = 164,895,662.13/18,948.48
  6. Step 6: Final answer
    x = 8,702.32

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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.