Home / 13,483.41-18,607.68-7,515.07

Finding the Fourth Proportional to 13,483.41, 18,607.68 and 7,515.07

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Solution

The fourth proportional to 13,483.41, 18,607.68 and 7,515.07 is: 10,371.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.41 : 18,607.68 = 7,515.07 : x
  2. Step 2: Convert to fraction form
    13,483.41/18,607.68 = 7,515.07/x
  3. Step 3: Cross multiply
    13,483.41x = 18,607.68 × 7,515.07
  4. Step 4: Simplify right side
    13,483.41x = 139,838,017.74
  5. Step 5: Solve for x
    x = 139,838,017.74/13,483.41
  6. Step 6: Final answer
    x = 10,371.12

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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.