Home / 13,595.80-20,397.12-5,276.40

Finding the Fourth Proportional to 13,595.80, 20,397.12 and 5,276.40

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Solution

The fourth proportional to 13,595.80, 20,397.12 and 5,276.40 is: 7,915.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,595.80 : 20,397.12 = 5,276.40 : x
  2. Step 2: Convert to fraction form
    13,595.80/20,397.12 = 5,276.40/x
  3. Step 3: Cross multiply
    13,595.80x = 20,397.12 × 5,276.40
  4. Step 4: Simplify right side
    13,595.80x = 107,623,363.97
  5. Step 5: Solve for x
    x = 107,623,363.97/13,595.80
  6. Step 6: Final answer
    x = 7,915.93

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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.