Home / 18,427.68-27,641.40-5,280.08

Finding the Fourth Proportional to 18,427.68, 27,641.40 and 5,280.08

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Solution

The fourth proportional to 18,427.68, 27,641.40 and 5,280.08 is: 7,920.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.68 : 27,641.40 = 5,280.08 : x
  2. Step 2: Convert to fraction form
    18,427.68/27,641.40 = 5,280.08/x
  3. Step 3: Cross multiply
    18,427.68x = 27,641.40 × 5,280.08
  4. Step 4: Simplify right side
    18,427.68x = 145,948,803.31
  5. Step 5: Solve for x
    x = 145,948,803.31/18,427.68
  6. Step 6: Final answer
    x = 7,920.09

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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.