Home / 13,785.04-19,005.60-10,013.68

Finding the Fourth Proportional to 13,785.04, 19,005.60 and 10,013.68

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Solution

The fourth proportional to 13,785.04, 19,005.60 and 10,013.68 is: 13,805.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.04 : 19,005.60 = 10,013.68 : x
  2. Step 2: Convert to fraction form
    13,785.04/19,005.60 = 10,013.68/x
  3. Step 3: Cross multiply
    13,785.04x = 19,005.60 × 10,013.68
  4. Step 4: Simplify right side
    13,785.04x = 190,315,996.61
  5. Step 5: Solve for x
    x = 190,315,996.61/13,785.04
  6. Step 6: Final answer
    x = 13,805.98

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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.