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Finding the Fourth Proportional to 13,248.77, 19,878.58 and 7,007.11

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Solution

The fourth proportional to 13,248.77, 19,878.58 and 7,007.11 is: 10,513.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.77 : 19,878.58 = 7,007.11 : x
  2. Step 2: Convert to fraction form
    13,248.77/19,878.58 = 7,007.11/x
  3. Step 3: Cross multiply
    13,248.77x = 19,878.58 × 7,007.11
  4. Step 4: Simplify right side
    13,248.77x = 139,291,355.77
  5. Step 5: Solve for x
    x = 139,291,355.77/13,248.77
  6. Step 6: Final answer
    x = 10,513.54

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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.