Home / 13,555.19-18,706.26-7,587.41

Finding the Fourth Proportional to 13,555.19, 18,706.26 and 7,587.41

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Solution

The fourth proportional to 13,555.19, 18,706.26 and 7,587.41 is: 10,470.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.19 : 18,706.26 = 7,587.41 : x
  2. Step 2: Convert to fraction form
    13,555.19/18,706.26 = 7,587.41/x
  3. Step 3: Cross multiply
    13,555.19x = 18,706.26 × 7,587.41
  4. Step 4: Simplify right side
    13,555.19x = 141,932,026.25
  5. Step 5: Solve for x
    x = 141,932,026.25/13,555.19
  6. Step 6: Final answer
    x = 10,470.68

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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.