Home / 13,929.55-19,224.48-7,959.85

Finding the Fourth Proportional to 13,929.55, 19,224.48 and 7,959.85

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Solution

The fourth proportional to 13,929.55, 19,224.48 and 7,959.85 is: 10,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.55 : 19,224.48 = 7,959.85 : x
  2. Step 2: Convert to fraction form
    13,929.55/19,224.48 = 7,959.85/x
  3. Step 3: Cross multiply
    13,929.55x = 19,224.48 × 7,959.85
  4. Step 4: Simplify right side
    13,929.55x = 153,023,977.13
  5. Step 5: Solve for x
    x = 153,023,977.13/13,929.55
  6. Step 6: Final answer
    x = 10,985.57

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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.