Home / 19,193.40-26,490.06-12,130.20

Finding the Fourth Proportional to 19,193.40, 26,490.06 and 12,130.20

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Solution

The fourth proportional to 19,193.40, 26,490.06 and 12,130.20 is: 16,741.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,193.40 : 26,490.06 = 12,130.20 : x
  2. Step 2: Convert to fraction form
    19,193.40/26,490.06 = 12,130.20/x
  3. Step 3: Cross multiply
    19,193.40x = 26,490.06 × 12,130.20
  4. Step 4: Simplify right side
    19,193.40x = 321,329,725.81
  5. Step 5: Solve for x
    x = 321,329,725.81/19,193.40
  6. Step 6: Final answer
    x = 16,741.68

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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.