Home / 13,543.04-20,263.52-7,999.40

Finding the Fourth Proportional to 13,543.04, 20,263.52 and 7,999.40

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Solution

The fourth proportional to 13,543.04, 20,263.52 and 7,999.40 is: 11,968.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.04 : 20,263.52 = 7,999.40 : x
  2. Step 2: Convert to fraction form
    13,543.04/20,263.52 = 7,999.40/x
  3. Step 3: Cross multiply
    13,543.04x = 20,263.52 × 7,999.40
  4. Step 4: Simplify right side
    13,543.04x = 162,096,001.89
  5. Step 5: Solve for x
    x = 162,096,001.89/13,543.04
  6. Step 6: Final answer
    x = 11,968.95

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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.