Home / 13,667.40-20,501.91-4,307.72

Finding the Fourth Proportional to 13,667.40, 20,501.91 and 4,307.72

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Solution

The fourth proportional to 13,667.40, 20,501.91 and 4,307.72 is: 6,461.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667.40 : 20,501.91 = 4,307.72 : x
  2. Step 2: Convert to fraction form
    13,667.40/20,501.91 = 4,307.72/x
  3. Step 3: Cross multiply
    13,667.40x = 20,501.91 × 4,307.72
  4. Step 4: Simplify right side
    13,667.40x = 88,316,385.24
  5. Step 5: Solve for x
    x = 88,316,385.24/13,667.40
  6. Step 6: Final answer
    x = 6,461.83

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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.