Home / 18,727.68-28,088.40-6,246.56

Finding the Fourth Proportional to 18,727.68, 28,088.40 and 6,246.56

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Solution

The fourth proportional to 18,727.68, 28,088.40 and 6,246.56 is: 9,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.68 : 28,088.40 = 6,246.56 : x
  2. Step 2: Convert to fraction form
    18,727.68/28,088.40 = 6,246.56/x
  3. Step 3: Cross multiply
    18,727.68x = 28,088.40 × 6,246.56
  4. Step 4: Simplify right side
    18,727.68x = 175,455,875.90
  5. Step 5: Solve for x
    x = 175,455,875.90/18,727.68
  6. Step 6: Final answer
    x = 9,368.80

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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.