Home / 19,311.48-26,648.53-10,812.15

Finding the Fourth Proportional to 19,311.48, 26,648.53 and 10,812.15

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Solution

The fourth proportional to 19,311.48, 26,648.53 and 10,812.15 is: 14,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,311.48 : 26,648.53 = 10,812.15 : x
  2. Step 2: Convert to fraction form
    19,311.48/26,648.53 = 10,812.15/x
  3. Step 3: Cross multiply
    19,311.48x = 26,648.53 × 10,812.15
  4. Step 4: Simplify right side
    19,311.48x = 288,127,876.61
  5. Step 5: Solve for x
    x = 288,127,876.61/19,311.48
  6. Step 6: Final answer
    x = 14,920.03

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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.