Home / 12,700.21-19,015.11-9,570.74

Finding the Fourth Proportional to 12,700.21, 19,015.11 and 9,570.74

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Solution

The fourth proportional to 12,700.21, 19,015.11 and 9,570.74 is: 14,329.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.21 : 19,015.11 = 9,570.74 : x
  2. Step 2: Convert to fraction form
    12,700.21/19,015.11 = 9,570.74/x
  3. Step 3: Cross multiply
    12,700.21x = 19,015.11 × 9,570.74
  4. Step 4: Simplify right side
    12,700.21x = 181,988,772.72
  5. Step 5: Solve for x
    x = 181,988,772.72/12,700.21
  6. Step 6: Final answer
    x = 14,329.59

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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.