Home / 13,530.40-18,671.60-7,562.10

Finding the Fourth Proportional to 13,530.40, 18,671.60 and 7,562.10

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Solution

The fourth proportional to 13,530.40, 18,671.60 and 7,562.10 is: 10,435.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.40 : 18,671.60 = 7,562.10 : x
  2. Step 2: Convert to fraction form
    13,530.40/18,671.60 = 7,562.10/x
  3. Step 3: Cross multiply
    13,530.40x = 18,671.60 × 7,562.10
  4. Step 4: Simplify right side
    13,530.40x = 141,196,506.36
  5. Step 5: Solve for x
    x = 141,196,506.36/13,530.40
  6. Step 6: Final answer
    x = 10,435.50

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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.