Home / 14,079.78-19,430.70-7,792.14

Finding the Fourth Proportional to 14,079.78, 19,430.70 and 7,792.14

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Solution

The fourth proportional to 14,079.78, 19,430.70 and 7,792.14 is: 10,753.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.78 : 19,430.70 = 7,792.14 : x
  2. Step 2: Convert to fraction form
    14,079.78/19,430.70 = 7,792.14/x
  3. Step 3: Cross multiply
    14,079.78x = 19,430.70 × 7,792.14
  4. Step 4: Simplify right side
    14,079.78x = 151,406,734.70
  5. Step 5: Solve for x
    x = 151,406,734.70/14,079.78
  6. Step 6: Final answer
    x = 10,753.49

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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.