Home / 18,681.59-28,028.54-7,585.30

Finding the Fourth Proportional to 18,681.59, 28,028.54 and 7,585.30

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Solution

The fourth proportional to 18,681.59, 28,028.54 and 7,585.30 is: 11,380.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.59 : 28,028.54 = 7,585.30 : x
  2. Step 2: Convert to fraction form
    18,681.59/28,028.54 = 7,585.30/x
  3. Step 3: Cross multiply
    18,681.59x = 28,028.54 × 7,585.30
  4. Step 4: Simplify right side
    18,681.59x = 212,604,938.46
  5. Step 5: Solve for x
    x = 212,604,938.46/18,681.59
  6. Step 6: Final answer
    x = 11,380.45

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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.