Home / 13,915.13-19,203.11-7,541.93

Finding the Fourth Proportional to 13,915.13, 19,203.11 and 7,541.93

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Solution

The fourth proportional to 13,915.13, 19,203.11 and 7,541.93 is: 10,407.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.13 : 19,203.11 = 7,541.93 : x
  2. Step 2: Convert to fraction form
    13,915.13/19,203.11 = 7,541.93/x
  3. Step 3: Cross multiply
    13,915.13x = 19,203.11 × 7,541.93
  4. Step 4: Simplify right side
    13,915.13x = 144,828,473.78
  5. Step 5: Solve for x
    x = 144,828,473.78/13,915.13
  6. Step 6: Final answer
    x = 10,407.99

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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.