Home / 16,482.47-22,749.01-12,890.30

Finding the Fourth Proportional to 16,482.47, 22,749.01 and 12,890.30

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Solution

The fourth proportional to 16,482.47, 22,749.01 and 12,890.30 is: 17,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,482.47 : 22,749.01 = 12,890.30 : x
  2. Step 2: Convert to fraction form
    16,482.47/22,749.01 = 12,890.30/x
  3. Step 3: Cross multiply
    16,482.47x = 22,749.01 × 12,890.30
  4. Step 4: Simplify right side
    16,482.47x = 293,241,417.63
  5. Step 5: Solve for x
    x = 293,241,417.63/16,482.47
  6. Step 6: Final answer
    x = 17,791.11

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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.