Home / 16,645.96-22,970.40-9,090.74

Finding the Fourth Proportional to 16,645.96, 22,970.40 and 9,090.74

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Solution

The fourth proportional to 16,645.96, 22,970.40 and 9,090.74 is: 12,544.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,645.96 : 22,970.40 = 9,090.74 : x
  2. Step 2: Convert to fraction form
    16,645.96/22,970.40 = 9,090.74/x
  3. Step 3: Cross multiply
    16,645.96x = 22,970.40 × 9,090.74
  4. Step 4: Simplify right side
    16,645.96x = 208,817,934.10
  5. Step 5: Solve for x
    x = 208,817,934.10/16,645.96
  6. Step 6: Final answer
    x = 12,544.66

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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.