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Finding the Fourth Proportional to 15,356.64, 22,990.64 and 9,012.32

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Solution

The fourth proportional to 15,356.64, 22,990.64 and 9,012.32 is: 13,492.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,356.64 : 22,990.64 = 9,012.32 : x
  2. Step 2: Convert to fraction form
    15,356.64/22,990.64 = 9,012.32/x
  3. Step 3: Cross multiply
    15,356.64x = 22,990.64 × 9,012.32
  4. Step 4: Simplify right side
    15,356.64x = 207,199,004.68
  5. Step 5: Solve for x
    x = 207,199,004.68/15,356.64
  6. Step 6: Final answer
    x = 13,492.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.