Home / 19,130.61-26,425.34-13,151.90

Finding the Fourth Proportional to 19,130.61, 26,425.34 and 13,151.90

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Solution

The fourth proportional to 19,130.61, 26,425.34 and 13,151.90 is: 18,166.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.61 : 26,425.34 = 13,151.90 : x
  2. Step 2: Convert to fraction form
    19,130.61/26,425.34 = 13,151.90/x
  3. Step 3: Cross multiply
    19,130.61x = 26,425.34 × 13,151.90
  4. Step 4: Simplify right side
    19,130.61x = 347,543,478.77
  5. Step 5: Solve for x
    x = 347,543,478.77/19,130.61
  6. Step 6: Final answer
    x = 18,166.88

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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.