Home / 13,587.40-20,364.90-7,010.20

Finding the Fourth Proportional to 13,587.40, 20,364.90 and 7,010.20

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Solution

The fourth proportional to 13,587.40, 20,364.90 and 7,010.20 is: 10,506.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.40 : 20,364.90 = 7,010.20 : x
  2. Step 2: Convert to fraction form
    13,587.40/20,364.90 = 7,010.20/x
  3. Step 3: Cross multiply
    13,587.40x = 20,364.90 × 7,010.20
  4. Step 4: Simplify right side
    13,587.40x = 142,762,021.98
  5. Step 5: Solve for x
    x = 142,762,021.98/13,587.40
  6. Step 6: Final answer
    x = 10,506.94

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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.