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Finding the Fourth Proportional to 14,158.68, 21,238.08 and 4,298.08

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Solution

The fourth proportional to 14,158.68, 21,238.08 and 4,298.08 is: 6,447.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,158.68 : 21,238.08 = 4,298.08 : x
  2. Step 2: Convert to fraction form
    14,158.68/21,238.08 = 4,298.08/x
  3. Step 3: Cross multiply
    14,158.68x = 21,238.08 × 4,298.08
  4. Step 4: Simplify right side
    14,158.68x = 91,282,966.89
  5. Step 5: Solve for x
    x = 91,282,966.89/14,158.68
  6. Step 6: Final answer
    x = 6,447.14

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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.