Home / 19,368.09-26,721.39-12,298.59

Finding the Fourth Proportional to 19,368.09, 26,721.39 and 12,298.59

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Solution

The fourth proportional to 19,368.09, 26,721.39 and 12,298.59 is: 16,967.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,368.09 : 26,721.39 = 12,298.59 : x
  2. Step 2: Convert to fraction form
    19,368.09/26,721.39 = 12,298.59/x
  3. Step 3: Cross multiply
    19,368.09x = 26,721.39 × 12,298.59
  4. Step 4: Simplify right side
    19,368.09x = 328,635,419.84
  5. Step 5: Solve for x
    x = 328,635,419.84/19,368.09
  6. Step 6: Final answer
    x = 16,967.88

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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.