Home / 15,436.02-21,302.54-8,721.93

Finding the Fourth Proportional to 15,436.02, 21,302.54 and 8,721.93

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Solution

The fourth proportional to 15,436.02, 21,302.54 and 8,721.93 is: 12,036.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,436.02 : 21,302.54 = 8,721.93 : x
  2. Step 2: Convert to fraction form
    15,436.02/21,302.54 = 8,721.93/x
  3. Step 3: Cross multiply
    15,436.02x = 21,302.54 × 8,721.93
  4. Step 4: Simplify right side
    15,436.02x = 185,799,219.09
  5. Step 5: Solve for x
    x = 185,799,219.09/15,436.02
  6. Step 6: Final answer
    x = 12,036.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.