Home / 15,746.46-21,686.16-13,069.27

Finding the Fourth Proportional to 15,746.46, 21,686.16 and 13,069.27

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Solution

The fourth proportional to 15,746.46, 21,686.16 and 13,069.27 is: 17,999.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,746.46 : 21,686.16 = 13,069.27 : x
  2. Step 2: Convert to fraction form
    15,746.46/21,686.16 = 13,069.27/x
  3. Step 3: Cross multiply
    15,746.46x = 21,686.16 × 13,069.27
  4. Step 4: Simplify right side
    15,746.46x = 283,422,280.30
  5. Step 5: Solve for x
    x = 283,422,280.30/15,746.46
  6. Step 6: Final answer
    x = 17,999.11

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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.