Home / 14,985.81-20,679.30-8,935.92

Finding the Fourth Proportional to 14,985.81, 20,679.30 and 8,935.92

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Solution

The fourth proportional to 14,985.81, 20,679.30 and 8,935.92 is: 12,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.81 : 20,679.30 = 8,935.92 : x
  2. Step 2: Convert to fraction form
    14,985.81/20,679.30 = 8,935.92/x
  3. Step 3: Cross multiply
    14,985.81x = 20,679.30 × 8,935.92
  4. Step 4: Simplify right side
    14,985.81x = 184,788,570.46
  5. Step 5: Solve for x
    x = 184,788,570.46/14,985.81
  6. Step 6: Final answer
    x = 12,330.90

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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.