Home / 15,362.95-21,195.74-12,525.42

Finding the Fourth Proportional to 15,362.95, 21,195.74 and 12,525.42

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Solution

The fourth proportional to 15,362.95, 21,195.74 and 12,525.42 is: 17,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.95 : 21,195.74 = 12,525.42 : x
  2. Step 2: Convert to fraction form
    15,362.95/21,195.74 = 12,525.42/x
  3. Step 3: Cross multiply
    15,362.95x = 21,195.74 × 12,525.42
  4. Step 4: Simplify right side
    15,362.95x = 265,485,545.71
  5. Step 5: Solve for x
    x = 265,485,545.71/15,362.95
  6. Step 6: Final answer
    x = 17,280.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.