Home / 14,742.84-20,345.40-8,775.30

Finding the Fourth Proportional to 14,742.84, 20,345.40 and 8,775.30

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Solution

The fourth proportional to 14,742.84, 20,345.40 and 8,775.30 is: 12,110.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.84 : 20,345.40 = 8,775.30 : x
  2. Step 2: Convert to fraction form
    14,742.84/20,345.40 = 8,775.30/x
  3. Step 3: Cross multiply
    14,742.84x = 20,345.40 × 8,775.30
  4. Step 4: Simplify right side
    14,742.84x = 178,536,988.62
  5. Step 5: Solve for x
    x = 178,536,988.62/14,742.84
  6. Step 6: Final answer
    x = 12,110.08

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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.