Home / 19,071.05-26,318.12-10,687.55

Finding the Fourth Proportional to 19,071.05, 26,318.12 and 10,687.55

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Solution

The fourth proportional to 19,071.05, 26,318.12 and 10,687.55 is: 14,748.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,071.05 : 26,318.12 = 10,687.55 : x
  2. Step 2: Convert to fraction form
    19,071.05/26,318.12 = 10,687.55/x
  3. Step 3: Cross multiply
    19,071.05x = 26,318.12 × 10,687.55
  4. Step 4: Simplify right side
    19,071.05x = 281,276,038.38
  5. Step 5: Solve for x
    x = 281,276,038.38/19,071.05
  6. Step 6: Final answer
    x = 14,748.85

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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.