Home / 15,342.06-21,172.02-8,973.04

Finding the Fourth Proportional to 15,342.06, 21,172.02 and 8,973.04

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Solution

The fourth proportional to 15,342.06, 21,172.02 and 8,973.04 is: 12,382.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342.06 : 21,172.02 = 8,973.04 : x
  2. Step 2: Convert to fraction form
    15,342.06/21,172.02 = 8,973.04/x
  3. Step 3: Cross multiply
    15,342.06x = 21,172.02 × 8,973.04
  4. Step 4: Simplify right side
    15,342.06x = 189,977,382.34
  5. Step 5: Solve for x
    x = 189,977,382.34/15,342.06
  6. Step 6: Final answer
    x = 12,382.78

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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.