Home / 14,008.32-19,315.68-13,685.76

Finding the Fourth Proportional to 14,008.32, 19,315.68 and 13,685.76

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Solution

The fourth proportional to 14,008.32, 19,315.68 and 13,685.76 is: 18,870.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.32 : 19,315.68 = 13,685.76 : x
  2. Step 2: Convert to fraction form
    14,008.32/19,315.68 = 13,685.76/x
  3. Step 3: Cross multiply
    14,008.32x = 19,315.68 × 13,685.76
  4. Step 4: Simplify right side
    14,008.32x = 264,349,760.72
  5. Step 5: Solve for x
    x = 264,349,760.72/14,008.32
  6. Step 6: Final answer
    x = 18,870.91

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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.