Home / 14,681.14-20,259.86-8,307.68

Finding the Fourth Proportional to 14,681.14, 20,259.86 and 8,307.68

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Solution

The fourth proportional to 14,681.14, 20,259.86 and 8,307.68 is: 11,464.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,681.14 : 20,259.86 = 8,307.68 : x
  2. Step 2: Convert to fraction form
    14,681.14/20,259.86 = 8,307.68/x
  3. Step 3: Cross multiply
    14,681.14x = 20,259.86 × 8,307.68
  4. Step 4: Simplify right side
    14,681.14x = 168,312,433.72
  5. Step 5: Solve for x
    x = 168,312,433.72/14,681.14
  6. Step 6: Final answer
    x = 11,464.53

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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.