Home / 14,011.74-21,017.90-5,686.05

Finding the Fourth Proportional to 14,011.74, 21,017.90 and 5,686.05

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Solution

The fourth proportional to 14,011.74, 21,017.90 and 5,686.05 is: 8,529.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,011.74 : 21,017.90 = 5,686.05 : x
  2. Step 2: Convert to fraction form
    14,011.74/21,017.90 = 5,686.05/x
  3. Step 3: Cross multiply
    14,011.74x = 21,017.90 × 5,686.05
  4. Step 4: Simplify right side
    14,011.74x = 119,508,801.86
  5. Step 5: Solve for x
    x = 119,508,801.86/14,011.74
  6. Step 6: Final answer
    x = 8,529.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.