Home / 13,854.72-19,116.95-7,886.03

Finding the Fourth Proportional to 13,854.72, 19,116.95 and 7,886.03

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Solution

The fourth proportional to 13,854.72, 19,116.95 and 7,886.03 is: 10,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.72 : 19,116.95 = 7,886.03 : x
  2. Step 2: Convert to fraction form
    13,854.72/19,116.95 = 7,886.03/x
  3. Step 3: Cross multiply
    13,854.72x = 19,116.95 × 7,886.03
  4. Step 4: Simplify right side
    13,854.72x = 150,756,706.19
  5. Step 5: Solve for x
    x = 150,756,706.19/13,854.72
  6. Step 6: Final answer
    x = 10,881.25

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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.