Home / 16,972.12-23,421.59-9,417.93

Finding the Fourth Proportional to 16,972.12, 23,421.59 and 9,417.93

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Solution

The fourth proportional to 16,972.12, 23,421.59 and 9,417.93 is: 12,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,972.12 : 23,421.59 = 9,417.93 : x
  2. Step 2: Convert to fraction form
    16,972.12/23,421.59 = 9,417.93/x
  3. Step 3: Cross multiply
    16,972.12x = 23,421.59 × 9,417.93
  4. Step 4: Simplify right side
    16,972.12x = 220,582,895.11
  5. Step 5: Solve for x
    x = 220,582,895.11/16,972.12
  6. Step 6: Final answer
    x = 12,996.78

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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.