Home / 13,006.87-17,949.34-7,038.40

Finding the Fourth Proportional to 13,006.87, 17,949.34 and 7,038.40

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Solution

The fourth proportional to 13,006.87, 17,949.34 and 7,038.40 is: 9,712.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,006.87 : 17,949.34 = 7,038.40 : x
  2. Step 2: Convert to fraction form
    13,006.87/17,949.34 = 7,038.40/x
  3. Step 3: Cross multiply
    13,006.87x = 17,949.34 × 7,038.40
  4. Step 4: Simplify right side
    13,006.87x = 126,334,599.46
  5. Step 5: Solve for x
    x = 126,334,599.46/13,006.87
  6. Step 6: Final answer
    x = 9,712.92

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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.