Home / 14,187.71-21,259.49-5,417.84

Finding the Fourth Proportional to 14,187.71, 21,259.49 and 5,417.84

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Solution

The fourth proportional to 14,187.71, 21,259.49 and 5,417.84 is: 8,118.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.71 : 21,259.49 = 5,417.84 : x
  2. Step 2: Convert to fraction form
    14,187.71/21,259.49 = 5,417.84/x
  3. Step 3: Cross multiply
    14,187.71x = 21,259.49 × 5,417.84
  4. Step 4: Simplify right side
    14,187.71x = 115,180,381.91
  5. Step 5: Solve for x
    x = 115,180,381.91/14,187.71
  6. Step 6: Final answer
    x = 8,118.32

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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.