Home / 12,477.84-18,722.28-9,700.38

Finding the Fourth Proportional to 12,477.84, 18,722.28 and 9,700.38

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Solution

The fourth proportional to 12,477.84, 18,722.28 and 9,700.38 is: 14,554.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477.84 : 18,722.28 = 9,700.38 : x
  2. Step 2: Convert to fraction form
    12,477.84/18,722.28 = 9,700.38/x
  3. Step 3: Cross multiply
    12,477.84x = 18,722.28 × 9,700.38
  4. Step 4: Simplify right side
    12,477.84x = 181,613,230.47
  5. Step 5: Solve for x
    x = 181,613,230.47/12,477.84
  6. Step 6: Final answer
    x = 14,554.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.