Home / 13,315.02-18,377.13-7,726.02

Finding the Fourth Proportional to 13,315.02, 18,377.13 and 7,726.02

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Solution

The fourth proportional to 13,315.02, 18,377.13 and 7,726.02 is: 10,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.02 : 18,377.13 = 7,726.02 : x
  2. Step 2: Convert to fraction form
    13,315.02/18,377.13 = 7,726.02/x
  3. Step 3: Cross multiply
    13,315.02x = 18,377.13 × 7,726.02
  4. Step 4: Simplify right side
    13,315.02x = 141,982,073.92
  5. Step 5: Solve for x
    x = 141,982,073.92/13,315.02
  6. Step 6: Final answer
    x = 10,663.30

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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.