Home / 19,337.28-26,654.40-13,038.72

Finding the Fourth Proportional to 19,337.28, 26,654.40 and 13,038.72

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Solution

The fourth proportional to 19,337.28, 26,654.40 and 13,038.72 is: 17,972.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,337.28 : 26,654.40 = 13,038.72 : x
  2. Step 2: Convert to fraction form
    19,337.28/26,654.40 = 13,038.72/x
  3. Step 3: Cross multiply
    19,337.28x = 26,654.40 × 13,038.72
  4. Step 4: Simplify right side
    19,337.28x = 347,539,258.37
  5. Step 5: Solve for x
    x = 347,539,258.37/19,337.28
  6. Step 6: Final answer
    x = 17,972.50

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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.