Home / 19,071.70-26,318.99-10,688.20

Finding the Fourth Proportional to 19,071.70, 26,318.99 and 10,688.20

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Solution

The fourth proportional to 19,071.70, 26,318.99 and 10,688.20 is: 14,749.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,071.70 : 26,318.99 = 10,688.20 : x
  2. Step 2: Convert to fraction form
    19,071.70/26,318.99 = 10,688.20/x
  3. Step 3: Cross multiply
    19,071.70x = 26,318.99 × 10,688.20
  4. Step 4: Simplify right side
    19,071.70x = 281,302,692.79
  5. Step 5: Solve for x
    x = 281,302,692.79/19,071.70
  6. Step 6: Final answer
    x = 14,749.74

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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.