Home / 14,438.91-19,925.79-8,470.71

Finding the Fourth Proportional to 14,438.91, 19,925.79 and 8,470.71

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Solution

The fourth proportional to 14,438.91, 19,925.79 and 8,470.71 is: 11,689.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,438.91 : 19,925.79 = 8,470.71 : x
  2. Step 2: Convert to fraction form
    14,438.91/19,925.79 = 8,470.71/x
  3. Step 3: Cross multiply
    14,438.91x = 19,925.79 × 8,470.71
  4. Step 4: Simplify right side
    14,438.91x = 168,785,588.61
  5. Step 5: Solve for x
    x = 168,785,588.61/14,438.91
  6. Step 6: Final answer
    x = 11,689.64

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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.