Home / 14,957.28-20,637.36-9,289.44

Finding the Fourth Proportional to 14,957.28, 20,637.36 and 9,289.44

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Solution

The fourth proportional to 14,957.28, 20,637.36 and 9,289.44 is: 12,817.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,957.28 : 20,637.36 = 9,289.44 : x
  2. Step 2: Convert to fraction form
    14,957.28/20,637.36 = 9,289.44/x
  3. Step 3: Cross multiply
    14,957.28x = 20,637.36 × 9,289.44
  4. Step 4: Simplify right side
    14,957.28x = 191,709,517.48
  5. Step 5: Solve for x
    x = 191,709,517.48/14,957.28
  6. Step 6: Final answer
    x = 12,817.14

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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.