Home / 15,290.02-21,097.02-9,992.62

Finding the Fourth Proportional to 15,290.02, 21,097.02 and 9,992.62

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Solution

The fourth proportional to 15,290.02, 21,097.02 and 9,992.62 is: 13,787.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290.02 : 21,097.02 = 9,992.62 : x
  2. Step 2: Convert to fraction form
    15,290.02/21,097.02 = 9,992.62/x
  3. Step 3: Cross multiply
    15,290.02x = 21,097.02 × 9,992.62
  4. Step 4: Simplify right side
    15,290.02x = 210,814,503.99
  5. Step 5: Solve for x
    x = 210,814,503.99/15,290.02
  6. Step 6: Final answer
    x = 13,787.72

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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.