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Finding the Fourth Proportional to 14,038.20, 21,035.16 and 9,097.20

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Solution

The fourth proportional to 14,038.20, 21,035.16 and 9,097.20 is: 13,631.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,038.20 : 21,035.16 = 9,097.20 : x
  2. Step 2: Convert to fraction form
    14,038.20/21,035.16 = 9,097.20/x
  3. Step 3: Cross multiply
    14,038.20x = 21,035.16 × 9,097.20
  4. Step 4: Simplify right side
    14,038.20x = 191,361,057.55
  5. Step 5: Solve for x
    x = 191,361,057.55/14,038.20
  6. Step 6: Final answer
    x = 13,631.45

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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.