Home / 13,853.10-19,117.02-7,803.36

Finding the Fourth Proportional to 13,853.10, 19,117.02 and 7,803.36

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Solution

The fourth proportional to 13,853.10, 19,117.02 and 7,803.36 is: 10,768.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.10 : 19,117.02 = 7,803.36 : x
  2. Step 2: Convert to fraction form
    13,853.10/19,117.02 = 7,803.36/x
  3. Step 3: Cross multiply
    13,853.10x = 19,117.02 × 7,803.36
  4. Step 4: Simplify right side
    13,853.10x = 149,176,989.19
  5. Step 5: Solve for x
    x = 149,176,989.19/13,853.10
  6. Step 6: Final answer
    x = 10,768.49

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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.