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Finding the Fourth Proportional to 13,038.56, 19,557.84 and 4,719.68

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Solution

The fourth proportional to 13,038.56, 19,557.84 and 4,719.68 is: 7,079.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.56 : 19,557.84 = 4,719.68 : x
  2. Step 2: Convert to fraction form
    13,038.56/19,557.84 = 4,719.68/x
  3. Step 3: Cross multiply
    13,038.56x = 19,557.84 × 4,719.68
  4. Step 4: Simplify right side
    13,038.56x = 92,306,746.29
  5. Step 5: Solve for x
    x = 92,306,746.29/13,038.56
  6. Step 6: Final answer
    x = 7,079.52

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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.