Home / 19,875.74-27,427.95-11,377.58

Finding the Fourth Proportional to 19,875.74, 27,427.95 and 11,377.58

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Solution

The fourth proportional to 19,875.74, 27,427.95 and 11,377.58 is: 15,700.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.74 : 27,427.95 = 11,377.58 : x
  2. Step 2: Convert to fraction form
    19,875.74/27,427.95 = 11,377.58/x
  3. Step 3: Cross multiply
    19,875.74x = 27,427.95 × 11,377.58
  4. Step 4: Simplify right side
    19,875.74x = 312,063,558.22
  5. Step 5: Solve for x
    x = 312,063,558.22/19,875.74
  6. Step 6: Final answer
    x = 15,700.73

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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.