Home / 13,747.58-18,971.16-7,459.82

Finding the Fourth Proportional to 13,747.58, 18,971.16 and 7,459.82

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Solution

The fourth proportional to 13,747.58, 18,971.16 and 7,459.82 is: 10,294.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.58 : 18,971.16 = 7,459.82 : x
  2. Step 2: Convert to fraction form
    13,747.58/18,971.16 = 7,459.82/x
  3. Step 3: Cross multiply
    13,747.58x = 18,971.16 × 7,459.82
  4. Step 4: Simplify right side
    13,747.58x = 141,521,458.24
  5. Step 5: Solve for x
    x = 141,521,458.24/13,747.58
  6. Step 6: Final answer
    x = 10,294.28

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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.