Home / 16,975.91-23,426.40-9,421.80

Finding the Fourth Proportional to 16,975.91, 23,426.40 and 9,421.80

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Solution

The fourth proportional to 16,975.91, 23,426.40 and 9,421.80 is: 13,001.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,975.91 : 23,426.40 = 9,421.80 : x
  2. Step 2: Convert to fraction form
    16,975.91/23,426.40 = 9,421.80/x
  3. Step 3: Cross multiply
    16,975.91x = 23,426.40 × 9,421.80
  4. Step 4: Simplify right side
    16,975.91x = 220,718,855.52
  5. Step 5: Solve for x
    x = 220,718,855.52/16,975.91
  6. Step 6: Final answer
    x = 13,001.89

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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.