Home / 13,077.40-18,045.70-7,773.48

Finding the Fourth Proportional to 13,077.40, 18,045.70 and 7,773.48

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Solution

The fourth proportional to 13,077.40, 18,045.70 and 7,773.48 is: 10,726.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.40 : 18,045.70 = 7,773.48 : x
  2. Step 2: Convert to fraction form
    13,077.40/18,045.70 = 7,773.48/x
  3. Step 3: Cross multiply
    13,077.40x = 18,045.70 × 7,773.48
  4. Step 4: Simplify right side
    13,077.40x = 140,277,888.04
  5. Step 5: Solve for x
    x = 140,277,888.04/13,077.40
  6. Step 6: Final answer
    x = 10,726.74

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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.