Home / 18,280.10-27,421.11-5,133.49

Finding the Fourth Proportional to 18,280.10, 27,421.11 and 5,133.49

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Solution

The fourth proportional to 18,280.10, 27,421.11 and 5,133.49 is: 7,700.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.10 : 27,421.11 = 5,133.49 : x
  2. Step 2: Convert to fraction form
    18,280.10/27,421.11 = 5,133.49/x
  3. Step 3: Cross multiply
    18,280.10x = 27,421.11 × 5,133.49
  4. Step 4: Simplify right side
    18,280.10x = 140,765,925.42
  5. Step 5: Solve for x
    x = 140,765,925.42/18,280.10
  6. Step 6: Final answer
    x = 7,700.50

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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.