Home / 13,854.03-19,118.67-7,886.16

Finding the Fourth Proportional to 13,854.03, 19,118.67 and 7,886.16

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Solution

The fourth proportional to 13,854.03, 19,118.67 and 7,886.16 is: 10,882.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.03 : 19,118.67 = 7,886.16 : x
  2. Step 2: Convert to fraction form
    13,854.03/19,118.67 = 7,886.16/x
  3. Step 3: Cross multiply
    13,854.03x = 19,118.67 × 7,886.16
  4. Step 4: Simplify right side
    13,854.03x = 150,772,890.61
  5. Step 5: Solve for x
    x = 150,772,890.61/13,854.03
  6. Step 6: Final answer
    x = 10,882.96

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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.