Home / 13,547.68-20,323.04-7,702.72

Finding the Fourth Proportional to 13,547.68, 20,323.04 and 7,702.72

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Solution

The fourth proportional to 13,547.68, 20,323.04 and 7,702.72 is: 11,554.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.68 : 20,323.04 = 7,702.72 : x
  2. Step 2: Convert to fraction form
    13,547.68/20,323.04 = 7,702.72/x
  3. Step 3: Cross multiply
    13,547.68x = 20,323.04 × 7,702.72
  4. Step 4: Simplify right side
    13,547.68x = 156,542,686.67
  5. Step 5: Solve for x
    x = 156,542,686.67/13,547.68
  6. Step 6: Final answer
    x = 11,554.94

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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.