Home / 15,804.72-21,807.36-9,517.50

Finding the Fourth Proportional to 15,804.72, 21,807.36 and 9,517.50

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Solution

The fourth proportional to 15,804.72, 21,807.36 and 9,517.50 is: 13,132.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,804.72 : 21,807.36 = 9,517.50 : x
  2. Step 2: Convert to fraction form
    15,804.72/21,807.36 = 9,517.50/x
  3. Step 3: Cross multiply
    15,804.72x = 21,807.36 × 9,517.50
  4. Step 4: Simplify right side
    15,804.72x = 207,551,548.80
  5. Step 5: Solve for x
    x = 207,551,548.80/15,804.72
  6. Step 6: Final answer
    x = 13,132.25

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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.