Home / 13,981.25-19,294.26-7,693.76

Finding the Fourth Proportional to 13,981.25, 19,294.26 and 7,693.76

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Solution

The fourth proportional to 13,981.25, 19,294.26 and 7,693.76 is: 10,617.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.25 : 19,294.26 = 7,693.76 : x
  2. Step 2: Convert to fraction form
    13,981.25/19,294.26 = 7,693.76/x
  3. Step 3: Cross multiply
    13,981.25x = 19,294.26 × 7,693.76
  4. Step 4: Simplify right side
    13,981.25x = 148,445,405.82
  5. Step 5: Solve for x
    x = 148,445,405.82/13,981.25
  6. Step 6: Final answer
    x = 10,617.46

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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.