Home / 12,281.30-18,406.54-5,253.07

Finding the Fourth Proportional to 12,281.30, 18,406.54 and 5,253.07

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Solution

The fourth proportional to 12,281.30, 18,406.54 and 5,253.07 is: 7,873.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.30 : 18,406.54 = 5,253.07 : x
  2. Step 2: Convert to fraction form
    12,281.30/18,406.54 = 5,253.07/x
  3. Step 3: Cross multiply
    12,281.30x = 18,406.54 × 5,253.07
  4. Step 4: Simplify right side
    12,281.30x = 96,690,751.05
  5. Step 5: Solve for x
    x = 96,690,751.05/12,281.30
  6. Step 6: Final answer
    x = 7,873.01

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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.