Home / 13,599.78-18,766.56-7,549.35

Finding the Fourth Proportional to 13,599.78, 18,766.56 and 7,549.35

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Solution

The fourth proportional to 13,599.78, 18,766.56 and 7,549.35 is: 10,417.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.78 : 18,766.56 = 7,549.35 : x
  2. Step 2: Convert to fraction form
    13,599.78/18,766.56 = 7,549.35/x
  3. Step 3: Cross multiply
    13,599.78x = 18,766.56 × 7,549.35
  4. Step 4: Simplify right side
    13,599.78x = 141,675,329.74
  5. Step 5: Solve for x
    x = 141,675,329.74/13,599.78
  6. Step 6: Final answer
    x = 10,417.47

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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.