Home / 15,442.08-21,309.84-8,368.32

Finding the Fourth Proportional to 15,442.08, 21,309.84 and 8,368.32

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Solution

The fourth proportional to 15,442.08, 21,309.84 and 8,368.32 is: 11,548.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442.08 : 21,309.84 = 8,368.32 : x
  2. Step 2: Convert to fraction form
    15,442.08/21,309.84 = 8,368.32/x
  3. Step 3: Cross multiply
    15,442.08x = 21,309.84 × 8,368.32
  4. Step 4: Simplify right side
    15,442.08x = 178,327,560.27
  5. Step 5: Solve for x
    x = 178,327,560.27/15,442.08
  6. Step 6: Final answer
    x = 11,548.16

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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.