Home / 13,368.59-18,452.76-7,707.12

Finding the Fourth Proportional to 13,368.59, 18,452.76 and 7,707.12

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Solution

The fourth proportional to 13,368.59, 18,452.76 and 7,707.12 is: 10,638.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,368.59 : 18,452.76 = 7,707.12 : x
  2. Step 2: Convert to fraction form
    13,368.59/18,452.76 = 7,707.12/x
  3. Step 3: Cross multiply
    13,368.59x = 18,452.76 × 7,707.12
  4. Step 4: Simplify right side
    13,368.59x = 142,217,635.65
  5. Step 5: Solve for x
    x = 142,217,635.65/13,368.59
  6. Step 6: Final answer
    x = 10,638.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.