Home / 13,864.69-19,135.49-10,903.02

Finding the Fourth Proportional to 13,864.69, 19,135.49 and 10,903.02

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Solution

The fourth proportional to 13,864.69, 19,135.49 and 10,903.02 is: 15,047.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.69 : 19,135.49 = 10,903.02 : x
  2. Step 2: Convert to fraction form
    13,864.69/19,135.49 = 10,903.02/x
  3. Step 3: Cross multiply
    13,864.69x = 19,135.49 × 10,903.02
  4. Step 4: Simplify right side
    13,864.69x = 208,634,630.18
  5. Step 5: Solve for x
    x = 208,634,630.18/13,864.69
  6. Step 6: Final answer
    x = 15,047.91

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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.