Home / 15,342.02-21,173.09-9,374.83

Finding the Fourth Proportional to 15,342.02, 21,173.09 and 9,374.83

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Solution

The fourth proportional to 15,342.02, 21,173.09 and 9,374.83 is: 12,937.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342.02 : 21,173.09 = 9,374.83 : x
  2. Step 2: Convert to fraction form
    15,342.02/21,173.09 = 9,374.83/x
  3. Step 3: Cross multiply
    15,342.02x = 21,173.09 × 9,374.83
  4. Step 4: Simplify right side
    15,342.02x = 198,494,119.32
  5. Step 5: Solve for x
    x = 198,494,119.32/15,342.02
  6. Step 6: Final answer
    x = 12,937.94

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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.