Home / 13,595.40-20,400.53-5,275.75

Finding the Fourth Proportional to 13,595.40, 20,400.53 and 5,275.75

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Solution

The fourth proportional to 13,595.40, 20,400.53 and 5,275.75 is: 7,916.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,595.40 : 20,400.53 = 5,275.75 : x
  2. Step 2: Convert to fraction form
    13,595.40/20,400.53 = 5,275.75/x
  3. Step 3: Cross multiply
    13,595.40x = 20,400.53 × 5,275.75
  4. Step 4: Simplify right side
    13,595.40x = 107,627,994.14
  5. Step 5: Solve for x
    x = 107,627,994.14/13,595.40
  6. Step 6: Final answer
    x = 7,916.50

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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.