Home / 13,223.46-19,935.30-12,509.04

Finding the Fourth Proportional to 13,223.46, 19,935.30 and 12,509.04

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Solution

The fourth proportional to 13,223.46, 19,935.30 and 12,509.04 is: 18,858.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.46 : 19,935.30 = 12,509.04 : x
  2. Step 2: Convert to fraction form
    13,223.46/19,935.30 = 12,509.04/x
  3. Step 3: Cross multiply
    13,223.46x = 19,935.30 × 12,509.04
  4. Step 4: Simplify right side
    13,223.46x = 249,371,465.11
  5. Step 5: Solve for x
    x = 249,371,465.11/13,223.46
  6. Step 6: Final answer
    x = 18,858.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.