Home / 19,875.60-27,425.70-11,376.72

Finding the Fourth Proportional to 19,875.60, 27,425.70 and 11,376.72

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Solution

The fourth proportional to 19,875.60, 27,425.70 and 11,376.72 is: 15,698.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.60 : 27,425.70 = 11,376.72 : x
  2. Step 2: Convert to fraction form
    19,875.60/27,425.70 = 11,376.72/x
  3. Step 3: Cross multiply
    19,875.60x = 27,425.70 × 11,376.72
  4. Step 4: Simplify right side
    19,875.60x = 312,014,509.70
  5. Step 5: Solve for x
    x = 312,014,509.70/19,875.60
  6. Step 6: Final answer
    x = 15,698.37

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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.