Home / 12,253.96-16,905.56-7,210.20

Finding the Fourth Proportional to 12,253.96, 16,905.56 and 7,210.20

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Solution

The fourth proportional to 12,253.96, 16,905.56 and 7,210.20 is: 9,947.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.96 : 16,905.56 = 7,210.20 : x
  2. Step 2: Convert to fraction form
    12,253.96/16,905.56 = 7,210.20/x
  3. Step 3: Cross multiply
    12,253.96x = 16,905.56 × 7,210.20
  4. Step 4: Simplify right side
    12,253.96x = 121,892,468.71
  5. Step 5: Solve for x
    x = 121,892,468.71/12,253.96
  6. Step 6: Final answer
    x = 9,947.19

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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.