Home / 13,915.09-19,202.90-7,541.69

Finding the Fourth Proportional to 13,915.09, 19,202.90 and 7,541.69

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Solution

The fourth proportional to 13,915.09, 19,202.90 and 7,541.69 is: 10,407.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.09 : 19,202.90 = 7,541.69 : x
  2. Step 2: Convert to fraction form
    13,915.09/19,202.90 = 7,541.69/x
  3. Step 3: Cross multiply
    13,915.09x = 19,202.90 × 7,541.69
  4. Step 4: Simplify right side
    13,915.09x = 144,822,318.90
  5. Step 5: Solve for x
    x = 144,822,318.90/13,915.09
  6. Step 6: Final answer
    x = 10,407.57

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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.