Home / 13,877.13-19,152.29-7,828.61

Finding the Fourth Proportional to 13,877.13, 19,152.29 and 7,828.61

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Solution

The fourth proportional to 13,877.13, 19,152.29 and 7,828.61 is: 10,804.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.13 : 19,152.29 = 7,828.61 : x
  2. Step 2: Convert to fraction form
    13,877.13/19,152.29 = 7,828.61/x
  3. Step 3: Cross multiply
    13,877.13x = 19,152.29 × 7,828.61
  4. Step 4: Simplify right side
    13,877.13x = 149,935,876.47
  5. Step 5: Solve for x
    x = 149,935,876.47/13,877.13
  6. Step 6: Final answer
    x = 10,804.53

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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.