Home / 14,686.68-20,265.58-8,637.20

Finding the Fourth Proportional to 14,686.68, 20,265.58 and 8,637.20

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Solution

The fourth proportional to 14,686.68, 20,265.58 and 8,637.20 is: 11,918.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,686.68 : 20,265.58 = 8,637.20 : x
  2. Step 2: Convert to fraction form
    14,686.68/20,265.58 = 8,637.20/x
  3. Step 3: Cross multiply
    14,686.68x = 20,265.58 × 8,637.20
  4. Step 4: Simplify right side
    14,686.68x = 175,037,723.06
  5. Step 5: Solve for x
    x = 175,037,723.06/14,686.68
  6. Step 6: Final answer
    x = 11,918.13

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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.