Home / 19,259.99-28,877.51-12,666.18

Finding the Fourth Proportional to 19,259.99, 28,877.51 and 12,666.18

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Solution

The fourth proportional to 19,259.99, 28,877.51 and 12,666.18 is: 18,991.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,259.99 : 28,877.51 = 12,666.18 : x
  2. Step 2: Convert to fraction form
    19,259.99/28,877.51 = 12,666.18/x
  3. Step 3: Cross multiply
    19,259.99x = 28,877.51 × 12,666.18
  4. Step 4: Simplify right side
    19,259.99x = 365,767,771.28
  5. Step 5: Solve for x
    x = 365,767,771.28/19,259.99
  6. Step 6: Final answer
    x = 18,991.07

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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.