Home / 18,952.08-28,428.12-6,637.20

Finding the Fourth Proportional to 18,952.08, 28,428.12 and 6,637.20

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Solution

The fourth proportional to 18,952.08, 28,428.12 and 6,637.20 is: 9,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,952.08 : 28,428.12 = 6,637.20 : x
  2. Step 2: Convert to fraction form
    18,952.08/28,428.12 = 6,637.20/x
  3. Step 3: Cross multiply
    18,952.08x = 28,428.12 × 6,637.20
  4. Step 4: Simplify right side
    18,952.08x = 188,683,118.06
  5. Step 5: Solve for x
    x = 188,683,118.06/18,952.08
  6. Step 6: Final answer
    x = 9,955.80

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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.