Home / 13,768.08-19,000.47-7,480.45

Finding the Fourth Proportional to 13,768.08, 19,000.47 and 7,480.45

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Solution

The fourth proportional to 13,768.08, 19,000.47 and 7,480.45 is: 10,323.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.08 : 19,000.47 = 7,480.45 : x
  2. Step 2: Convert to fraction form
    13,768.08/19,000.47 = 7,480.45/x
  3. Step 3: Cross multiply
    13,768.08x = 19,000.47 × 7,480.45
  4. Step 4: Simplify right side
    13,768.08x = 142,132,117.61
  5. Step 5: Solve for x
    x = 142,132,117.61/13,768.08
  6. Step 6: Final answer
    x = 10,323.31

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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.