Home / 12,715.36-19,073.04-5,785

Finding the Fourth Proportional to 12,715.36, 19,073.04 and 5,785

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Solution

The fourth proportional to 12,715.36, 19,073.04 and 5,785 is: 8,677.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.36 : 19,073.04 = 5,785 : x
  2. Step 2: Convert to fraction form
    12,715.36/19,073.04 = 5,785/x
  3. Step 3: Cross multiply
    12,715.36x = 19,073.04 × 5,785
  4. Step 4: Simplify right side
    12,715.36x = 110,337,536.40
  5. Step 5: Solve for x
    x = 110,337,536.40/12,715.36
  6. Step 6: Final answer
    x = 8,677.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.