Home / 12,953.39-17,875.28-7,288.45

Finding the Fourth Proportional to 12,953.39, 17,875.28 and 7,288.45

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Solution

The fourth proportional to 12,953.39, 17,875.28 and 7,288.45 is: 10,057.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953.39 : 17,875.28 = 7,288.45 : x
  2. Step 2: Convert to fraction form
    12,953.39/17,875.28 = 7,288.45/x
  3. Step 3: Cross multiply
    12,953.39x = 17,875.28 × 7,288.45
  4. Step 4: Simplify right side
    12,953.39x = 130,283,058.05
  5. Step 5: Solve for x
    x = 130,283,058.05/12,953.39
  6. Step 6: Final answer
    x = 10,057.84

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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.