Home / 15,240.06-21,032.46-8,868.60

Finding the Fourth Proportional to 15,240.06, 21,032.46 and 8,868.60

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Solution

The fourth proportional to 15,240.06, 21,032.46 and 8,868.60 is: 12,239.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.06 : 21,032.46 = 8,868.60 : x
  2. Step 2: Convert to fraction form
    15,240.06/21,032.46 = 8,868.60/x
  3. Step 3: Cross multiply
    15,240.06x = 21,032.46 × 8,868.60
  4. Step 4: Simplify right side
    15,240.06x = 186,528,474.76
  5. Step 5: Solve for x
    x = 186,528,474.76/15,240.06
  6. Step 6: Final answer
    x = 12,239.35

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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.