Home / 12,228.48-16,875.12-7,193.28

Finding the Fourth Proportional to 12,228.48, 16,875.12 and 7,193.28

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Solution

The fourth proportional to 12,228.48, 16,875.12 and 7,193.28 is: 9,926.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228.48 : 16,875.12 = 7,193.28 : x
  2. Step 2: Convert to fraction form
    12,228.48/16,875.12 = 7,193.28/x
  3. Step 3: Cross multiply
    12,228.48x = 16,875.12 × 7,193.28
  4. Step 4: Simplify right side
    12,228.48x = 121,387,463.19
  5. Step 5: Solve for x
    x = 121,387,463.19/12,228.48
  6. Step 6: Final answer
    x = 9,926.62

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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.