Home / 14,178.63-21,271.17-7,158.36

Finding the Fourth Proportional to 14,178.63, 21,271.17 and 7,158.36

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Solution

The fourth proportional to 14,178.63, 21,271.17 and 7,158.36 is: 10,739.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.63 : 21,271.17 = 7,158.36 : x
  2. Step 2: Convert to fraction form
    14,178.63/21,271.17 = 7,158.36/x
  3. Step 3: Cross multiply
    14,178.63x = 21,271.17 × 7,158.36
  4. Step 4: Simplify right side
    14,178.63x = 152,266,692.48
  5. Step 5: Solve for x
    x = 152,266,692.48/14,178.63
  6. Step 6: Final answer
    x = 10,739.17

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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.