Home / 13,915.28-19,203.14-7,541.88

Finding the Fourth Proportional to 13,915.28, 19,203.14 and 7,541.88

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Solution

The fourth proportional to 13,915.28, 19,203.14 and 7,541.88 is: 10,407.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.28 : 19,203.14 = 7,541.88 : x
  2. Step 2: Convert to fraction form
    13,915.28/19,203.14 = 7,541.88/x
  3. Step 3: Cross multiply
    13,915.28x = 19,203.14 × 7,541.88
  4. Step 4: Simplify right side
    13,915.28x = 144,827,777.50
  5. Step 5: Solve for x
    x = 144,827,777.50/13,915.28
  6. Step 6: Final answer
    x = 10,407.82

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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.