Home / 14,886.12-20,543.58-8,918.76

Finding the Fourth Proportional to 14,886.12, 20,543.58 and 8,918.76

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Solution

The fourth proportional to 14,886.12, 20,543.58 and 8,918.76 is: 12,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,886.12 : 20,543.58 = 8,918.76 : x
  2. Step 2: Convert to fraction form
    14,886.12/20,543.58 = 8,918.76/x
  3. Step 3: Cross multiply
    14,886.12x = 20,543.58 × 8,918.76
  4. Step 4: Simplify right side
    14,886.12x = 183,223,259.56
  5. Step 5: Solve for x
    x = 183,223,259.56/14,886.12
  6. Step 6: Final answer
    x = 12,308.33

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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.