Home / 13,140.56-19,710.86-4,376.16

Finding the Fourth Proportional to 13,140.56, 19,710.86 and 4,376.16

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Solution

The fourth proportional to 13,140.56, 19,710.86 and 4,376.16 is: 6,564.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.56 : 19,710.86 = 4,376.16 : x
  2. Step 2: Convert to fraction form
    13,140.56/19,710.86 = 4,376.16/x
  3. Step 3: Cross multiply
    13,140.56x = 19,710.86 × 4,376.16
  4. Step 4: Simplify right side
    13,140.56x = 86,257,855.22
  5. Step 5: Solve for x
    x = 86,257,855.22/13,140.56
  6. Step 6: Final answer
    x = 6,564.24

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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.