Home / 14,810.04-20,440.08-8,521.20

Finding the Fourth Proportional to 14,810.04, 20,440.08 and 8,521.20

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Solution

The fourth proportional to 14,810.04, 20,440.08 and 8,521.20 is: 11,760.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,810.04 : 20,440.08 = 8,521.20 : x
  2. Step 2: Convert to fraction form
    14,810.04/20,440.08 = 8,521.20/x
  3. Step 3: Cross multiply
    14,810.04x = 20,440.08 × 8,521.20
  4. Step 4: Simplify right side
    14,810.04x = 174,174,009.70
  5. Step 5: Solve for x
    x = 174,174,009.70/14,810.04
  6. Step 6: Final answer
    x = 11,760.54

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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.