Home / 15,615.03-21,549.26-8,541.46

Finding the Fourth Proportional to 15,615.03, 21,549.26 and 8,541.46

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Solution

The fourth proportional to 15,615.03, 21,549.26 and 8,541.46 is: 11,787.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615.03 : 21,549.26 = 8,541.46 : x
  2. Step 2: Convert to fraction form
    15,615.03/21,549.26 = 8,541.46/x
  3. Step 3: Cross multiply
    15,615.03x = 21,549.26 × 8,541.46
  4. Step 4: Simplify right side
    15,615.03x = 184,062,142.32
  5. Step 5: Solve for x
    x = 184,062,142.32/15,615.03
  6. Step 6: Final answer
    x = 11,787.50

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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.