Home / 13,454.41-18,566.80-7,790.16

Finding the Fourth Proportional to 13,454.41, 18,566.80 and 7,790.16

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Solution

The fourth proportional to 13,454.41, 18,566.80 and 7,790.16 is: 10,750.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.41 : 18,566.80 = 7,790.16 : x
  2. Step 2: Convert to fraction form
    13,454.41/18,566.80 = 7,790.16/x
  3. Step 3: Cross multiply
    13,454.41x = 18,566.80 × 7,790.16
  4. Step 4: Simplify right side
    13,454.41x = 144,638,363.31
  5. Step 5: Solve for x
    x = 144,638,363.31/13,454.41
  6. Step 6: Final answer
    x = 10,750.26

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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.