Home / 12,577.28-18,867.54-4,785.08

Finding the Fourth Proportional to 12,577.28, 18,867.54 and 4,785.08

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Solution

The fourth proportional to 12,577.28, 18,867.54 and 4,785.08 is: 7,178.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.28 : 18,867.54 = 4,785.08 : x
  2. Step 2: Convert to fraction form
    12,577.28/18,867.54 = 4,785.08/x
  3. Step 3: Cross multiply
    12,577.28x = 18,867.54 × 4,785.08
  4. Step 4: Simplify right side
    12,577.28x = 90,282,688.30
  5. Step 5: Solve for x
    x = 90,282,688.30/12,577.28
  6. Step 6: Final answer
    x = 7,178.24

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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.