Home / 12,285.04-18,434.16-5,359.12

Finding the Fourth Proportional to 12,285.04, 18,434.16 and 5,359.12

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Solution

The fourth proportional to 12,285.04, 18,434.16 and 5,359.12 is: 8,041.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.04 : 18,434.16 = 5,359.12 : x
  2. Step 2: Convert to fraction form
    12,285.04/18,434.16 = 5,359.12/x
  3. Step 3: Cross multiply
    12,285.04x = 18,434.16 × 5,359.12
  4. Step 4: Simplify right side
    12,285.04x = 98,790,875.54
  5. Step 5: Solve for x
    x = 98,790,875.54/12,285.04
  6. Step 6: Final answer
    x = 8,041.56

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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.