Home / 19,420.86-26,798.75-11,869.03

Finding the Fourth Proportional to 19,420.86, 26,798.75 and 11,869.03

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Solution

The fourth proportional to 19,420.86, 26,798.75 and 11,869.03 is: 16,378.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.86 : 26,798.75 = 11,869.03 : x
  2. Step 2: Convert to fraction form
    19,420.86/26,798.75 = 11,869.03/x
  3. Step 3: Cross multiply
    19,420.86x = 26,798.75 × 11,869.03
  4. Step 4: Simplify right side
    19,420.86x = 318,075,186.37
  5. Step 5: Solve for x
    x = 318,075,186.37/19,420.86
  6. Step 6: Final answer
    x = 16,378.01

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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.