Home / 13,937.61-19,225.78-8,628.64

Finding the Fourth Proportional to 13,937.61, 19,225.78 and 8,628.64

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Solution

The fourth proportional to 13,937.61, 19,225.78 and 8,628.64 is: 11,902.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.61 : 19,225.78 = 8,628.64 : x
  2. Step 2: Convert to fraction form
    13,937.61/19,225.78 = 8,628.64/x
  3. Step 3: Cross multiply
    13,937.61x = 19,225.78 × 8,628.64
  4. Step 4: Simplify right side
    13,937.61x = 165,892,334.34
  5. Step 5: Solve for x
    x = 165,892,334.34/13,937.61
  6. Step 6: Final answer
    x = 11,902.50

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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.