Home / 19,437.37-26,827.35-12,639.81

Finding the Fourth Proportional to 19,437.37, 26,827.35 and 12,639.81

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Solution

The fourth proportional to 19,437.37, 26,827.35 and 12,639.81 is: 17,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,437.37 : 26,827.35 = 12,639.81 : x
  2. Step 2: Convert to fraction form
    19,437.37/26,827.35 = 12,639.81/x
  3. Step 3: Cross multiply
    19,437.37x = 26,827.35 × 12,639.81
  4. Step 4: Simplify right side
    19,437.37x = 339,092,606.80
  5. Step 5: Solve for x
    x = 339,092,606.80/19,437.37
  6. Step 6: Final answer
    x = 17,445.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.