Home / 14,628.08-20,184.16-8,340.40

Finding the Fourth Proportional to 14,628.08, 20,184.16 and 8,340.40

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Solution

The fourth proportional to 14,628.08, 20,184.16 and 8,340.40 is: 11,508.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,628.08 : 20,184.16 = 8,340.40 : x
  2. Step 2: Convert to fraction form
    14,628.08/20,184.16 = 8,340.40/x
  3. Step 3: Cross multiply
    14,628.08x = 20,184.16 × 8,340.40
  4. Step 4: Simplify right side
    14,628.08x = 168,343,968.06
  5. Step 5: Solve for x
    x = 168,343,968.06/14,628.08
  6. Step 6: Final answer
    x = 11,508.28

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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.