Home / 14,013.81-21,011.30-5,574.72

Finding the Fourth Proportional to 14,013.81, 21,011.30 and 5,574.72

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Solution

The fourth proportional to 14,013.81, 21,011.30 and 5,574.72 is: 8,358.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,013.81 : 21,011.30 = 5,574.72 : x
  2. Step 2: Convert to fraction form
    14,013.81/21,011.30 = 5,574.72/x
  3. Step 3: Cross multiply
    14,013.81x = 21,011.30 × 5,574.72
  4. Step 4: Simplify right side
    14,013.81x = 117,132,186.16
  5. Step 5: Solve for x
    x = 117,132,186.16/14,013.81
  6. Step 6: Final answer
    x = 8,358.34

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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.