Home / 13,747.05-18,970.95-7,459.44

Finding the Fourth Proportional to 13,747.05, 18,970.95 and 7,459.44

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Solution

The fourth proportional to 13,747.05, 18,970.95 and 7,459.44 is: 10,294.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.05 : 18,970.95 = 7,459.44 : x
  2. Step 2: Convert to fraction form
    13,747.05/18,970.95 = 7,459.44/x
  3. Step 3: Cross multiply
    13,747.05x = 18,970.95 × 7,459.44
  4. Step 4: Simplify right side
    13,747.05x = 141,512,663.27
  5. Step 5: Solve for x
    x = 141,512,663.27/13,747.05
  6. Step 6: Final answer
    x = 10,294.04

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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.