Home / 13,260.68-19,888.86-4,495.40

Finding the Fourth Proportional to 13,260.68, 19,888.86 and 4,495.40

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Solution

The fourth proportional to 13,260.68, 19,888.86 and 4,495.40 is: 6,742.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.68 : 19,888.86 = 4,495.40 : x
  2. Step 2: Convert to fraction form
    13,260.68/19,888.86 = 4,495.40/x
  3. Step 3: Cross multiply
    13,260.68x = 19,888.86 × 4,495.40
  4. Step 4: Simplify right side
    13,260.68x = 89,408,381.24
  5. Step 5: Solve for x
    x = 89,408,381.24/13,260.68
  6. Step 6: Final answer
    x = 6,742.37

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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.