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Finding the Fourth Proportional to 14,000.51, 20,898.35 and 12,339.81

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Solution

The fourth proportional to 14,000.51, 20,898.35 and 12,339.81 is: 18,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.51 : 20,898.35 = 12,339.81 : x
  2. Step 2: Convert to fraction form
    14,000.51/20,898.35 = 12,339.81/x
  3. Step 3: Cross multiply
    14,000.51x = 20,898.35 × 12,339.81
  4. Step 4: Simplify right side
    14,000.51x = 257,881,606.61
  5. Step 5: Solve for x
    x = 257,881,606.61/14,000.51
  6. Step 6: Final answer
    x = 18,419.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.