Home / 15,248.07-21,042-8,875.80

Finding the Fourth Proportional to 15,248.07, 21,042 and 8,875.80

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Solution

The fourth proportional to 15,248.07, 21,042 and 8,875.80 is: 12,248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,248.07 : 21,042 = 8,875.80 : x
  2. Step 2: Convert to fraction form
    15,248.07/21,042 = 8,875.80/x
  3. Step 3: Cross multiply
    15,248.07x = 21,042 × 8,875.80
  4. Step 4: Simplify right side
    15,248.07x = 186,764,583.60
  5. Step 5: Solve for x
    x = 186,764,583.60/15,248.07
  6. Step 6: Final answer
    x = 12,248.41

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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.