Home / 19,459.85-26,844.21-11,909.84

Finding the Fourth Proportional to 19,459.85, 26,844.21 and 11,909.84

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Solution

The fourth proportional to 19,459.85, 26,844.21 and 11,909.84 is: 16,429.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,459.85 : 26,844.21 = 11,909.84 : x
  2. Step 2: Convert to fraction form
    19,459.85/26,844.21 = 11,909.84/x
  3. Step 3: Cross multiply
    19,459.85x = 26,844.21 × 11,909.84
  4. Step 4: Simplify right side
    19,459.85x = 319,710,111.81
  5. Step 5: Solve for x
    x = 319,710,111.81/19,459.85
  6. Step 6: Final answer
    x = 16,429.22

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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.