Home / 13,950.14-19,242.15-8,915.90

Finding the Fourth Proportional to 13,950.14, 19,242.15 and 8,915.90

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Solution

The fourth proportional to 13,950.14, 19,242.15 and 8,915.90 is: 12,298.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,950.14 : 19,242.15 = 8,915.90 : x
  2. Step 2: Convert to fraction form
    13,950.14/19,242.15 = 8,915.90/x
  3. Step 3: Cross multiply
    13,950.14x = 19,242.15 × 8,915.90
  4. Step 4: Simplify right side
    13,950.14x = 171,561,085.19
  5. Step 5: Solve for x
    x = 171,561,085.19/13,950.14
  6. Step 6: Final answer
    x = 12,298.16

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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.