Home / 15,492.18-21,382.32-9,203.34

Finding the Fourth Proportional to 15,492.18, 21,382.32 and 9,203.34

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Solution

The fourth proportional to 15,492.18, 21,382.32 and 9,203.34 is: 12,702.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,492.18 : 21,382.32 = 9,203.34 : x
  2. Step 2: Convert to fraction form
    15,492.18/21,382.32 = 9,203.34/x
  3. Step 3: Cross multiply
    15,492.18x = 21,382.32 × 9,203.34
  4. Step 4: Simplify right side
    15,492.18x = 196,788,760.95
  5. Step 5: Solve for x
    x = 196,788,760.95/15,492.18
  6. Step 6: Final answer
    x = 12,702.46

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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.