Home / 16,980.19-23,432.69-9,907.07

Finding the Fourth Proportional to 16,980.19, 23,432.69 and 9,907.07

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Solution

The fourth proportional to 16,980.19, 23,432.69 and 9,907.07 is: 13,671.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,980.19 : 23,432.69 = 9,907.07 : x
  2. Step 2: Convert to fraction form
    16,980.19/23,432.69 = 9,907.07/x
  3. Step 3: Cross multiply
    16,980.19x = 23,432.69 × 9,907.07
  4. Step 4: Simplify right side
    16,980.19x = 232,149,207.72
  5. Step 5: Solve for x
    x = 232,149,207.72/16,980.19
  6. Step 6: Final answer
    x = 13,671.77

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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.