Home / 14,002.60-19,324.48-7,715

Finding the Fourth Proportional to 14,002.60, 19,324.48 and 7,715

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Solution

The fourth proportional to 14,002.60, 19,324.48 and 7,715 is: 10,647.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,002.60 : 19,324.48 = 7,715 : x
  2. Step 2: Convert to fraction form
    14,002.60/19,324.48 = 7,715/x
  3. Step 3: Cross multiply
    14,002.60x = 19,324.48 × 7,715
  4. Step 4: Simplify right side
    14,002.60x = 149,088,363.20
  5. Step 5: Solve for x
    x = 149,088,363.20/14,002.60
  6. Step 6: Final answer
    x = 10,647.19

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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.