Home / 13,868.08-19,130.70-9,393.40

Finding the Fourth Proportional to 13,868.08, 19,130.70 and 9,393.40

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Solution

The fourth proportional to 13,868.08, 19,130.70 and 9,393.40 is: 12,957.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.08 : 19,130.70 = 9,393.40 : x
  2. Step 2: Convert to fraction form
    13,868.08/19,130.70 = 9,393.40/x
  3. Step 3: Cross multiply
    13,868.08x = 19,130.70 × 9,393.40
  4. Step 4: Simplify right side
    13,868.08x = 179,702,317.38
  5. Step 5: Solve for x
    x = 179,702,317.38/13,868.08
  6. Step 6: Final answer
    x = 12,957.98

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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.