Home / 13,207.55-19,806.74-5,307.72

Finding the Fourth Proportional to 13,207.55, 19,806.74 and 5,307.72

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Solution

The fourth proportional to 13,207.55, 19,806.74 and 5,307.72 is: 7,959.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.55 : 19,806.74 = 5,307.72 : x
  2. Step 2: Convert to fraction form
    13,207.55/19,806.74 = 5,307.72/x
  3. Step 3: Cross multiply
    13,207.55x = 19,806.74 × 5,307.72
  4. Step 4: Simplify right side
    13,207.55x = 105,128,603.49
  5. Step 5: Solve for x
    x = 105,128,603.49/13,207.55
  6. Step 6: Final answer
    x = 7,959.74

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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.