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Finding the Fourth Proportional to 14,298.80, 21,402.12 and 7,363.76

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Solution

The fourth proportional to 14,298.80, 21,402.12 and 7,363.76 is: 11,021.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,298.80 : 21,402.12 = 7,363.76 : x
  2. Step 2: Convert to fraction form
    14,298.80/21,402.12 = 7,363.76/x
  3. Step 3: Cross multiply
    14,298.80x = 21,402.12 × 7,363.76
  4. Step 4: Simplify right side
    14,298.80x = 157,600,075.17
  5. Step 5: Solve for x
    x = 157,600,075.17/14,298.80
  6. Step 6: Final answer
    x = 11,021.91

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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.