Home / 15,713.04-21,684.06-8,543.02

Finding the Fourth Proportional to 15,713.04, 21,684.06 and 8,543.02

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Solution

The fourth proportional to 15,713.04, 21,684.06 and 8,543.02 is: 11,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,713.04 : 21,684.06 = 8,543.02 : x
  2. Step 2: Convert to fraction form
    15,713.04/21,684.06 = 8,543.02/x
  3. Step 3: Cross multiply
    15,713.04x = 21,684.06 × 8,543.02
  4. Step 4: Simplify right side
    15,713.04x = 185,247,358.26
  5. Step 5: Solve for x
    x = 185,247,358.26/15,713.04
  6. Step 6: Final answer
    x = 11,789.40

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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.