Home / 14,900.74-20,555.31-10,120.93

Finding the Fourth Proportional to 14,900.74, 20,555.31 and 10,120.93

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Solution

The fourth proportional to 14,900.74, 20,555.31 and 10,120.93 is: 13,961.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,900.74 : 20,555.31 = 10,120.93 : x
  2. Step 2: Convert to fraction form
    14,900.74/20,555.31 = 10,120.93/x
  3. Step 3: Cross multiply
    14,900.74x = 20,555.31 × 10,120.93
  4. Step 4: Simplify right side
    14,900.74x = 208,038,853.64
  5. Step 5: Solve for x
    x = 208,038,853.64/14,900.74
  6. Step 6: Final answer
    x = 13,961.65

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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.