Home / 13,513.02-18,642.59-9,029.67

Finding the Fourth Proportional to 13,513.02, 18,642.59 and 9,029.67

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Solution

The fourth proportional to 13,513.02, 18,642.59 and 9,029.67 is: 12,457.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.02 : 18,642.59 = 9,029.67 : x
  2. Step 2: Convert to fraction form
    13,513.02/18,642.59 = 9,029.67/x
  3. Step 3: Cross multiply
    13,513.02x = 18,642.59 × 9,029.67
  4. Step 4: Simplify right side
    13,513.02x = 168,336,435.65
  5. Step 5: Solve for x
    x = 168,336,435.65/13,513.02
  6. Step 6: Final answer
    x = 12,457.35

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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.