Home / 13,890.13-19,168.78-7,602.91

Finding the Fourth Proportional to 13,890.13, 19,168.78 and 7,602.91

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Solution

The fourth proportional to 13,890.13, 19,168.78 and 7,602.91 is: 10,492.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.13 : 19,168.78 = 7,602.91 : x
  2. Step 2: Convert to fraction form
    13,890.13/19,168.78 = 7,602.91/x
  3. Step 3: Cross multiply
    13,890.13x = 19,168.78 × 7,602.91
  4. Step 4: Simplify right side
    13,890.13x = 145,738,509.15
  5. Step 5: Solve for x
    x = 145,738,509.15/13,890.13
  6. Step 6: Final answer
    x = 10,492.24

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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.