Home / 15,242.46-21,032.51-8,868.57

Finding the Fourth Proportional to 15,242.46, 21,032.51 and 8,868.57

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Solution

The fourth proportional to 15,242.46, 21,032.51 and 8,868.57 is: 12,237.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,242.46 : 21,032.51 = 8,868.57 : x
  2. Step 2: Convert to fraction form
    15,242.46/21,032.51 = 8,868.57/x
  3. Step 3: Cross multiply
    15,242.46x = 21,032.51 × 8,868.57
  4. Step 4: Simplify right side
    15,242.46x = 186,528,242.87
  5. Step 5: Solve for x
    x = 186,528,242.87/15,242.46
  6. Step 6: Final answer
    x = 12,237.41

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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.