Home / 13,876.60-19,151.38-7,909.50

Finding the Fourth Proportional to 13,876.60, 19,151.38 and 7,909.50

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Solution

The fourth proportional to 13,876.60, 19,151.38 and 7,909.50 is: 10,916.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876.60 : 19,151.38 = 7,909.50 : x
  2. Step 2: Convert to fraction form
    13,876.60/19,151.38 = 7,909.50/x
  3. Step 3: Cross multiply
    13,876.60x = 19,151.38 × 7,909.50
  4. Step 4: Simplify right side
    13,876.60x = 151,477,840.11
  5. Step 5: Solve for x
    x = 151,477,840.11/13,876.60
  6. Step 6: Final answer
    x = 10,916.06

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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.