Home / 13,587.44-18,746.46-7,618.28

Finding the Fourth Proportional to 13,587.44, 18,746.46 and 7,618.28

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Solution

The fourth proportional to 13,587.44, 18,746.46 and 7,618.28 is: 10,510.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.44 : 18,746.46 = 7,618.28 : x
  2. Step 2: Convert to fraction form
    13,587.44/18,746.46 = 7,618.28/x
  3. Step 3: Cross multiply
    13,587.44x = 18,746.46 × 7,618.28
  4. Step 4: Simplify right side
    13,587.44x = 142,815,781.29
  5. Step 5: Solve for x
    x = 142,815,781.29/13,587.44
  6. Step 6: Final answer
    x = 10,510.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.