Home / 13,905.02-19,188.78-7,531.51

Finding the Fourth Proportional to 13,905.02, 19,188.78 and 7,531.51

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Solution

The fourth proportional to 13,905.02, 19,188.78 and 7,531.51 is: 10,393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.02 : 19,188.78 = 7,531.51 : x
  2. Step 2: Convert to fraction form
    13,905.02/19,188.78 = 7,531.51/x
  3. Step 3: Cross multiply
    13,905.02x = 19,188.78 × 7,531.51
  4. Step 4: Simplify right side
    13,905.02x = 144,520,488.46
  5. Step 5: Solve for x
    x = 144,520,488.46/13,905.02
  6. Step 6: Final answer
    x = 10,393.40

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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.