Home / 19,564.72-27,011.02-12,861.58

Finding the Fourth Proportional to 19,564.72, 27,011.02 and 12,861.58

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Solution

The fourth proportional to 19,564.72, 27,011.02 and 12,861.58 is: 17,756.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,564.72 : 27,011.02 = 12,861.58 : x
  2. Step 2: Convert to fraction form
    19,564.72/27,011.02 = 12,861.58/x
  3. Step 3: Cross multiply
    19,564.72x = 27,011.02 × 12,861.58
  4. Step 4: Simplify right side
    19,564.72x = 347,404,394.61
  5. Step 5: Solve for x
    x = 347,404,394.61/19,564.72
  6. Step 6: Final answer
    x = 17,756.68

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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.