Home / 14,457.29-19,961.91-12,780.59

Finding the Fourth Proportional to 14,457.29, 19,961.91 and 12,780.59

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Solution

The fourth proportional to 14,457.29, 19,961.91 and 12,780.59 is: 17,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,457.29 : 19,961.91 = 12,780.59 : x
  2. Step 2: Convert to fraction form
    14,457.29/19,961.91 = 12,780.59/x
  3. Step 3: Cross multiply
    14,457.29x = 19,961.91 × 12,780.59
  4. Step 4: Simplify right side
    14,457.29x = 255,124,887.52
  5. Step 5: Solve for x
    x = 255,124,887.52/14,457.29
  6. Step 6: Final answer
    x = 17,646.80

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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.