Home / 15,240.74-21,036.12-9,276.62

Finding the Fourth Proportional to 15,240.74, 21,036.12 and 9,276.62

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Solution

The fourth proportional to 15,240.74, 21,036.12 and 9,276.62 is: 12,804.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.74 : 21,036.12 = 9,276.62 : x
  2. Step 2: Convert to fraction form
    15,240.74/21,036.12 = 9,276.62/x
  3. Step 3: Cross multiply
    15,240.74x = 21,036.12 × 9,276.62
  4. Step 4: Simplify right side
    15,240.74x = 195,143,986.33
  5. Step 5: Solve for x
    x = 195,143,986.33/15,240.74
  6. Step 6: Final answer
    x = 12,804.11

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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.