Home / 15,280.93-21,100.23-9,624.79

Finding the Fourth Proportional to 15,280.93, 21,100.23 and 9,624.79

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Solution

The fourth proportional to 15,280.93, 21,100.23 and 9,624.79 is: 13,290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280.93 : 21,100.23 = 9,624.79 : x
  2. Step 2: Convert to fraction form
    15,280.93/21,100.23 = 9,624.79/x
  3. Step 3: Cross multiply
    15,280.93x = 21,100.23 × 9,624.79
  4. Step 4: Simplify right side
    15,280.93x = 203,085,282.70
  5. Step 5: Solve for x
    x = 203,085,282.70/15,280.93
  6. Step 6: Final answer
    x = 13,290.11

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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.