Home / 15,117.30-20,843.73-12,603.06

Finding the Fourth Proportional to 15,117.30, 20,843.73 and 12,603.06

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Solution

The fourth proportional to 15,117.30, 20,843.73 and 12,603.06 is: 17,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,117.30 : 20,843.73 = 12,603.06 : x
  2. Step 2: Convert to fraction form
    15,117.30/20,843.73 = 12,603.06/x
  3. Step 3: Cross multiply
    15,117.30x = 20,843.73 × 12,603.06
  4. Step 4: Simplify right side
    15,117.30x = 262,694,779.81
  5. Step 5: Solve for x
    x = 262,694,779.81/15,117.30
  6. Step 6: Final answer
    x = 17,377.10

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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.